{"title":"Collector's minerals","description":"\u003cp\u003eThese specimens are for the more serious mineral collector, and not commonly sold by metaphysical crystal shops.\u003c\/p\u003e","products":[{"product_id":"stalactitic-chalcedony-with-square-formation","title":"Orange chalcedony geode with square formation","description":"\u003cp\u003e\u003cstrong\u003eLocale:\u003c\/strong\u003e Atlas Mountains, Morocco\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox dimensions: \u003c\/strong\u003e\u003cspan data-sheets-root=\"1\"\u003e4 x 3 x 1.5\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox weight: \u003c\/strong\u003e308g\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eTypical stalactitic chalcedony is like a small cave lined with stalactites, botryoidal forms, and swirling agate patterns. This one lacks all of those lovely features so of course I was going to snatch it up.\u003c\/p\u003e\n\u003cp\u003eI've seen similar nested box-shaped formations explained as pseudomorphs or \u003ca rel=\"noopener\" title=\"The Quartz Page: Perimorphs\" href=\"http:\/\/www.quartzpage.de\/gro_text.html#peri\" target=\"_blank\"\u003eperimorphs\u003c\/a\u003e after cubic minerals, but that doesn't seem to apply here where the square is distorted like a bad acid trip. I haven't seen an example that looks quite so... flesh-like... like a bald extra-wrinkly sharpei. \u003cmeta charset=\"utf-8\"\u003eChalcedony geodes can display quite ropey growth forms, and as you look closer at the edges the folding appears like a block of ramen.\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eOn the back, a pocket is broken open to reveal a quartz geode. Since chalcedony and quartz are closely related you often see them grow together. They have the same chemical composition (silica) but different crystal structure (cryptocrystalline vs. crystalline).\u003c\/p\u003e\n\u003cp\u003eWhile commonly called red chalcedony, I find the color is more orange to red-orange. Hematite causes this coloration, but later phases of growth (“second generation”) in the geode don’t contain hematite inclusions and are white to colorless.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUV reactivity\u003c\/strong\u003e There is an opaque white mineral overgrowth on part of the quartz geode that may be calcite; it fluoresces and phosphoresces under 365nm UV light.\u003c\/p\u003e","brand":"Pretty Ugly Things","offers":[{"title":"Default Title","offer_id":44554246094999,"sku":"","price":40.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0639\/5192\/9495\/files\/IMG_9463.jpg?v=1724777673"},{"product_id":"hydroxyapophyllite","title":"Hydroxyapophyllite","description":"\u003cp\u003e\u003cstrong\u003eLocale:\u003c\/strong\u003e N'Chwaning II Mine, South Africa\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox dimensions: \u003c\/strong\u003e3 x 1.25 x 1\u003cspan data-sheets-root=\"1\"\u003e\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cstyle type=\"text\/css\"\u003e\u003c!--td {border: 1px solid #cccccc;}br {mso-data-placement:same-cell;}--\u003e\u003c\/style\u003e\n\u003cstyle type=\"text\/css\"\u003e\u003c!--td {border: 1px solid #cccccc;}br {mso-data-placement:same-cell;}--\u003e\u003c\/style\u003e\n\u003cp\u003e\u003cstrong\u003eApprox weight:\u003c\/strong\u003e 85g\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThis specimen features hydroxyapophyllite crystals with lizardite and calcite on matrix. Properly called \"hydroxyapophyllite-(K),\" hydroxyapophyllite is a variety of apophyllite that is typically colorless. It more frequently grows cubic crystals, but these specimens from the renowned N'Chwaning Mines region form tabular square crystals similar to wulfenite, and can be colorless to semi-translucent white with inclusions.\u003c\/p\u003e\n\u003cp\u003eThe matte brown mineral coating the specimen is lizardite, which often grows in small spots along the junctions of the hydroxyapophyllite crystal. Calcite druzy glitters through the lizardite and covers the back of the specimen. The calcite has also formed stacks of small scalenohedral crystals. The dark matrix is likely manganese-based; the N'Chwaning mines were established to extract the rich manganese ore in the area.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUV reactivity\u003c\/strong\u003e \u003cmeta charset=\"utf-8\"\u003eVisible calcite fluoresces and phosphoresces faint red under 365 nm UV light. It can cause the \u003cmeta charset=\"utf-8\"\u003ehydroxyapophyllite crystals growing over it to glow a faint red—try it in a dark room \u003cmeta charset=\"utf-8\"\u003ewith a strong flashlight. An unknown whitish mineral finely dusts areas of the specimen strongly fluoresces icy blue.\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003e** Brittle warning!\u003c\/strong\u003e Hydroxyapophyllite specimens are somewhat delicate and may shed pieces; limit handling.\u003c\/p\u003e","brand":"Pretty Ugly Things","offers":[{"title":"Default Title","offer_id":44554899554455,"sku":"","price":50.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0639\/5192\/9495\/files\/IMG_3112.jpg?v=1724801835"},{"product_id":"hydroxyapophyllite-intersecting-crystals","title":"Hydroxyapophyllite with two large intersecting crystals","description":"\u003cp\u003e\u003cstrong\u003eLocale:\u003c\/strong\u003e N'Chwaning II Mine, South Africa\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox dimensions: \u003c\/strong\u003e2.5 x 1.75 x 1\"\u003c\/p\u003e\n\u003cstyle type=\"text\/css\"\u003e\u003c!--td {border: 1px solid #cccccc;}br {mso-data-placement:same-cell;}--\u003e\u003c\/style\u003e\n\u003cstyle type=\"text\/css\"\u003e\u003c!--td {border: 1px solid #cccccc;}br {mso-data-placement:same-cell;}--\u003e\u003c\/style\u003e\n\u003cp\u003e\u003cstrong\u003eApprox weight:\u003c\/strong\u003e 71g\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThis specimen features hydroxyapophyllite crystals with lizardite and calcite on matrix. Properly called \"hydroxyapophyllite-(K),\" hydroxyapophyllite is a variety of apophyllite that is typically colorless. It more frequently grows cubic crystals, but these specimens from the renowned N'Chwaning Mines region form tabular square crystals similar to wulfenite, and can be colorless to semi-translucent white with inclusions.\u003c\/p\u003e\n\u003cp\u003eThis piece has several large \u003cmeta charset=\"utf-8\"\u003ehydroxyapophyllite crystals, including two that are intersecting (the larger is 1cm). The matte brown mineral coating the specimen is lizardite, which often grows in small spots along the junctions of the hydroxyapophyllite crystal. Calcite druzy glitters through the lizardite and covers the back of the specimen. The calcite has also formed clusters of small scalenohedral crystals. The dark matrix is likely manganese-based; the N'Chwaning mines were established to extract the rich manganese ore in the area.\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003eUV reactivity\u003c\/strong\u003e \u003cmeta charset=\"utf-8\"\u003eVisible calcite fluoresces and phosphoresces moderate red under 365 nm UV light. It can cause the \u003cmeta charset=\"utf-8\"\u003ehydroxyapophyllite crystals growing over it to glow a faint red—try it in a dark room \u003cmeta charset=\"utf-8\"\u003ewith a strong flashlight. An unknown whitish mineral finely dusts areas of the specimen strongly fluoresces icy blue.\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003e** Brittle warning!\u003c\/strong\u003e Hydroxyapophyllite specimens are somewhat delicate and may shed pieces; limit handling.\u003c\/p\u003e","brand":"Pretty Ugly Things","offers":[{"title":"Default Title","offer_id":44576432357527,"sku":null,"price":50.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0639\/5192\/9495\/files\/IMG_3167.jpg?v=1725395478"},{"product_id":"hydroxyapophyllite-2","title":"Hydroxyapophyllite","description":"\u003cp\u003e\u003cstrong\u003eLocale:\u003c\/strong\u003e N'Chwaning II Mine, South Africa\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox dimensions: \u003cmeta charset=\"utf-8\"\u003e\u003c\/strong\u003e\u003cspan data-sheets-root=\"1\"\u003e2 x 1.5 x 1.25\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cstyle type=\"text\/css\"\u003e\u003c!--td {border: 1px solid #cccccc;}br {mso-data-placement:same-cell;}--\u003e\u003c\/style\u003e\n\u003cstyle type=\"text\/css\"\u003e\u003c!--td {border: 1px solid #cccccc;}br {mso-data-placement:same-cell;}--\u003e\u003c\/style\u003e\n\u003cstyle type=\"text\/css\"\u003e\u003c!--td {border: 1px solid #cccccc;}br {mso-data-placement:same-cell;}--\u003e\u003c\/style\u003e\n\u003cp\u003e\u003cstrong\u003eApprox weight:\u003c\/strong\u003e 145g\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThis specimen features hydroxyapophyllite crystals with lizardite and calcite on matrix. Properly called \"hydroxyapophyllite-(K),\" hydroxyapophyllite is a variety of apophyllite that is typically colorless. It more frequently grows cubic crystals, but these specimens from the renowned N'Chwaning Mines region form tabular square crystals similar to wulfenite, and can be colorless to semi-translucent white with inclusions.\u003c\/p\u003e\n\u003cp\u003eThis piece is covered with around two dozen \u003cmeta charset=\"utf-8\"\u003ehydroxyapophyllite crystals. The coffee-brown staining may be iron; the lighter brown mineral coating the specimen is lizardite, which often grows in small spots along the junctions of the hydroxyapophyllite crystal. Calcite has formed clusters of small scalenohedral crystals, and coats the specimen under the brown. Under UV light the calcite fluoresces from under the \u003cmeta charset=\"utf-8\"\u003ehydroxyapophyllite crystals, giving them a faint red glow—try it in a dark room.\u003c\/p\u003e\n\u003cp\u003eThe minerals are on a heavy dark matrix that is likely manganese-based; the N'Chwaning mines were established to extract the rich manganese ore in the area.\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003eUV reactivity\u003c\/strong\u003e \u003cmeta charset=\"utf-8\"\u003eVisible calcite fluoresces and phosphoresces moderate red under 365 nm UV light. It can cause the \u003cmeta charset=\"utf-8\"\u003ehydroxyapophyllite crystals growing over it to glow a faint red—try it in a dark room.\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003e** Brittle warning!\u003c\/strong\u003e Hydroxyapophyllite specimens are somewhat delicate and may shed pieces; limit handling.\u003c\/p\u003e","brand":"Pretty Ugly Things","offers":[{"title":"Default Title","offer_id":44576672317591,"sku":null,"price":55.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0639\/5192\/9495\/files\/IMG_3189.jpg?v=1725399320"},{"product_id":"hydroxyapophyllite-3","title":"Hydroxyapophyllite","description":"\u003cp\u003e\u003cstrong\u003eLocale:\u003c\/strong\u003e N'Chwaning II Mine, South Africa\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox dimensions: \u003c\/strong\u003e2.25 x 1.5 x 1\"\u003c\/p\u003e\n\u003cstyle type=\"text\/css\"\u003e\u003c!--td {border: 1px solid #cccccc;}br {mso-data-placement:same-cell;}--\u003e\u003c\/style\u003e\n\u003cstyle type=\"text\/css\"\u003e\u003c!--td {border: 1px solid #cccccc;}br {mso-data-placement:same-cell;}--\u003e\u003c\/style\u003e\n\u003cp\u003e\u003cstrong\u003eApprox weight:\u003c\/strong\u003e 95g\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThis specimen features hydroxyapophyllite crystals with lizardite and calcite on matrix. Properly called \"hydroxyapophyllite-(K),\" hydroxyapophyllite is a variety of apophyllite that is typically colorless. It more frequently grows cubic crystals, but these specimens from the renowned N'Chwaning Mines region form tabular square crystals similar to wulfenite, and can be colorless to semi-translucent white with inclusions.\u003c\/p\u003e\n\u003cp\u003eThe matte brown mineral coating the specimen is lizardite, which often grows in small spots along the junctions of the hydroxyapophyllite crystal. It especially highlights \u003cmeta charset=\"utf-8\"\u003estructure of the \u003cmeta charset=\"utf-8\"\u003ehydroxyapophyllite crystals of this piece. The largest crystal (just shy of 1cm) has a different shape from the rest: instead of two symmetrical faces on the edges it has one very large face and one that barely exists.\u003c\/p\u003e\n\u003cp\u003eCalcite druzy glitters through the lizardite and covers the back of the specimen. The calcite has also formed clusters of small scalenohedral crystals. The heavy dark matrix is likely manganese-based; the N'Chwaning mines were established to extract the rich manganese ore in the area.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUV reactivity\u003c\/strong\u003e Visible calcite fluoresces and phosphoresces moderate red under 365 nm UV light. It can cause the \u003cmeta charset=\"utf-8\"\u003ehydroxyapophyllite crystals growing over it to glow a faint red—try it in a dark room \u003cmeta charset=\"utf-8\"\u003ewith a strong flashlight.\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003e** Brittle warning!\u003c\/strong\u003e Hydroxyapophyllite specimens are somewhat delicate and may shed pieces; limit handling.\u003c\/p\u003e","brand":"Pretty Ugly Things","offers":[{"title":"Default Title","offer_id":44576739033239,"sku":null,"price":65.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0639\/5192\/9495\/files\/IMG_3210.jpg?v=1725400505"},{"product_id":"hydroxyapophyllite-4","title":"Hydroxyapophyllite","description":"\u003cp\u003e\u003cstrong\u003eLocale:\u003c\/strong\u003e N'Chwaning II Mine, South Africa\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox dimensions: \u003c\/strong\u003e2.25 x 1.5 x .75\"\u003c\/p\u003e\n\u003cstyle type=\"text\/css\"\u003e\u003c!--td {border: 1px solid #cccccc;}br {mso-data-placement:same-cell;}--\u003e\u003c\/style\u003e\n\u003cstyle type=\"text\/css\"\u003e\u003c!--td {border: 1px solid #cccccc;}br {mso-data-placement:same-cell;}--\u003e\u003c\/style\u003e\n\u003cp\u003e\u003cstrong\u003eApprox weight:\u003c\/strong\u003e 47g\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThis specimen features hydroxyapophyllite crystals with lizardite and calcite on matrix. Properly called \"hydroxyapophyllite-(K),\" hydroxyapophyllite is a variety of apophyllite that is typically colorless. It more frequently grows cubic crystals, but these specimens from the renowned N'Chwaning Mines region form tabular square crystals similar to wulfenite, and can be colorless to semi-translucent white with inclusions.\u003c\/p\u003e\n\u003cp\u003eThe matte light brown mineral coating the specimen is lizardite, which often grows in small spots along the junctions of the hydroxyapophyllite crystal. Calcite druzy glitters through the lizardite and covers the back of the specimen. The calcite has also formed clusters of small scalenohedral crystals. The heavy dark matrix is likely manganese-based; the N'Chwaning mines were established to extract the rich manganese ore in the area. \u003cmeta charset=\"utf-8\"\u003eThe coffee-brown staining may be iron.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUV reactivity\u003c\/strong\u003e Visible calcite fluoresces and phosphoresces faint red under 365 nm UV light. It can cause the \u003cmeta charset=\"utf-8\"\u003ehydroxyapophyllite crystals growing over it to glow a faint red—try it in a dark room \u003cmeta charset=\"utf-8\"\u003ewith a strong flashlight.\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003e** Brittle warning!\u003c\/strong\u003e Hydroxyapophyllite specimens are somewhat delicate and may shed pieces; limit handling.\u003c\/p\u003e","brand":"Pretty Ugly Things","offers":[{"title":"Default Title","offer_id":44576811384983,"sku":null,"price":40.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0639\/5192\/9495\/files\/IMG_3230.jpg?v=1725402098"},{"product_id":"hydroxyapophyllite-5","title":"Hydroxyapophyllite","description":"\u003cp\u003e\u003cstrong\u003eLocale:\u003c\/strong\u003e N'Chwaning II Mine, South Africa\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox dimensions: \u003c\/strong\u003e2.5 x 1.75 x .25\"\u003c\/p\u003e\n\u003cstyle type=\"text\/css\"\u003e\u003c!--td {border: 1px solid #cccccc;}br {mso-data-placement:same-cell;}--\u003e\u003c\/style\u003e\n\u003cp\u003e\u003cstrong\u003eApprox weight:\u003c\/strong\u003e 25g\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThis specimen features hydroxyapophyllite crystals with lizardite and calcite on matrix. Properly called \"hydroxyapophyllite-(K),\" hydroxyapophyllite is a variety of apophyllite that is typically colorless. It more frequently grows cubic crystals, but these specimens from the renowned N'Chwaning Mines region form tabular square crystals similar to wulfenite, and can be colorless to semi-translucent white with inclusions.\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eThe matrix on this specimen is very thin, and displays a well-formed pair of intersecting crystals at the center. The light matte brown mineral coating the specimen is lizardite, which often grows in small spots along the junctions of the hydroxyapophyllite crystal. Calcite druzy glitters through the lizardite and covers the back of the specimen. The calcite has also formed stacks of small scalenohedral crystals. The dark matrix is likely manganese-based; the N'Chwaning mines were established to extract the rich manganese ore in the area. Coffee-brown staining may be iron.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUV reactivity\u003c\/strong\u003e Calcite can cause the \u003cmeta charset=\"utf-8\"\u003ehydroxyapophyllite crystals growing over it to glow a weak red \u003cmeta charset=\"utf-8\"\u003eunder 365 nm UV light—try it in a dark room \u003cmeta charset=\"utf-8\"\u003ewith a strong flashlight. An unknown whitish mineral finely dusts areas of the specimen strongly fluoresces icy blue.\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003e** Brittle warning!\u003c\/strong\u003e Hydroxyapophyllite specimens are somewhat delicate and may shed pieces; limit handling.\u003c\/p\u003e","brand":"Pretty Ugly Things","offers":[{"title":"Default Title","offer_id":44576836616343,"sku":null,"price":45.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0639\/5192\/9495\/files\/IMG_3256.jpg?v=1725402792"},{"product_id":"hydroxyapophyllite-7","title":"Hydroxyapophyllite","description":"\u003cp\u003e\u003cstrong\u003eLocale:\u003c\/strong\u003e N'Chwaning II Mine, South Africa\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox dimensions:\u003c\/strong\u003e 2.25 x 1 x 1\u003cspan data-sheets-root=\"1\"\u003e\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cstyle type=\"text\/css\"\u003e\u003c!--td {border: 1px solid #cccccc;}br {mso-data-placement:same-cell;}--\u003e\u003c\/style\u003e\n\u003cstyle type=\"text\/css\"\u003e\u003c!--td {border: 1px solid #cccccc;}br {mso-data-placement:same-cell;}--\u003e\u003c\/style\u003e\n\u003cp\u003e\u003cstrong\u003eApprox weight:\u003c\/strong\u003e 52g\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThis specimen features hydroxyapophyllite crystals with lizardite and calcite on matrix. Properly called \"hydroxyapophyllite-(K),\" hydroxyapophyllite is a variety of apophyllite that is typically colorless. It more frequently grows cubic crystals, but these specimens from the renowned N'Chwaning Mines region form tabular square crystals similar to wulfenite, and can be colorless to semi-translucent white with inclusions.\u003c\/p\u003e\n\u003cp\u003eThe matte brown mineral coating the specimen is lizardite, which often grows in small spots along the junctions of the hydroxyapophyllite crystal. Calcite druzy glitters through the lizardite and covers the back of the specimen. The calcite has also formed stacks of small scalenohedral crystals. The dark matrix is likely manganese-based; the N'Chwaning mines were established to extract the rich manganese ore in the area.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUV reactivity\u003c\/strong\u003e Some calcite fluoresces and phosphoresces weak red under 365 nm UV light. It can cause the \u003cmeta charset=\"utf-8\"\u003ehydroxyapophyllite crystals growing over it to glow a faint red—try it in a dark room \u003cmeta charset=\"utf-8\"\u003ewith a strong flashlight.\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003e** Brittle warning!\u003c\/strong\u003e Hydroxyapophyllite specimens are somewhat delicate and may shed pieces; limit handling.\u003c\/p\u003e","brand":"Pretty Ugly Things","offers":[{"title":"Default Title","offer_id":44576900448407,"sku":null,"price":50.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0639\/5192\/9495\/files\/IMG_3286.jpg?v=1725404275"},{"product_id":"hydroxyapophyllite-8","title":"Hydroxyapophyllite","description":"\u003cp\u003e\u003cstrong\u003eLocale:\u003c\/strong\u003e N'Chwaning II Mine, South Africa\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox dimensions: \u003c\/strong\u003e2.25 x 1 x .75\"\u003c\/p\u003e\n\u003cstyle type=\"text\/css\"\u003e\u003c!--td {border: 1px solid #cccccc;}br {mso-data-placement:same-cell;}--\u003e\u003c\/style\u003e\n\u003cstyle type=\"text\/css\"\u003e\u003c!--td {border: 1px solid #cccccc;}br {mso-data-placement:same-cell;}--\u003e\u003c\/style\u003e\n\u003cp\u003e\u003cstrong\u003eApprox weight:\u003c\/strong\u003e 30g\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThis specimen features hydroxyapophyllite crystals with lizardite and calcite on matrix. Properly called \"hydroxyapophyllite-(K),\" hydroxyapophyllite is a variety of apophyllite that is typically colorless. It more frequently grows cubic crystals, but these specimens from the renowned N'Chwaning Mines region form tabular square crystals similar to wulfenite, and can be colorless to semi-translucent white with inclusions.\u003c\/p\u003e\n\u003cp\u003eThis specimen has a cluster of intersecting \u003cmeta charset=\"utf-8\"\u003ehydroxyapophyllite crystals topped with a cluster of \u003cmeta charset=\"utf-8\"\u003esmall scalenohedral calcite crystals. The matte light brown mineral coating is lizardite, which often grows in small spots along the junctions of the hydroxyapophyllite crystal. Calcite covers the back of the specimen. The dark matrix is likely manganese-based; the N'Chwaning mines were established to extract the rich manganese ore in the area. \u003cmeta charset=\"utf-8\"\u003eThe coffee-brown staining may be iron.\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003eUV reactivity\u003c\/strong\u003e Some calcite fluoresces and phosphoresces weak red under 365 nm UV light. It can cause the \u003cmeta charset=\"utf-8\"\u003ehydroxyapophyllite crystals growing over it to glow a faint red—try it in a dark room \u003cmeta charset=\"utf-8\"\u003ewith a strong flashlight.\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003e** Brittle warning!\u003c\/strong\u003e Hydroxyapophyllite specimens are somewhat delicate and may shed pieces; limit handling.\u003c\/p\u003e","brand":"Pretty Ugly Things","offers":[{"title":"Default Title","offer_id":44576907690135,"sku":null,"price":45.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0639\/5192\/9495\/files\/IMG_3308.jpg?v=1725404818"},{"product_id":"hydroxyapophyllite-thumbnail","title":"Hydroxyapophyllite thumbnail","description":"\u003cp\u003e\u003cstrong\u003eLocale:\u003c\/strong\u003e N'Chwaning II Mine, South Africa\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox dimensions: \u003c\/strong\u003e8mm crystal; 1.25\" thumbnail box\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cstyle type=\"text\/css\"\u003e\u003c!--td {border: 1px solid #cccccc;}br {mso-data-placement:same-cell;}--\u003e\u003c\/style\u003e\n\u003cstyle type=\"text\/css\"\u003e\u003c!--td {border: 1px solid #cccccc;}br {mso-data-placement:same-cell;}--\u003e\u003c\/style\u003e\n\u003cp\u003eThis thumbnail specimen features a single hydroxyapophyllite crystal with lizardite and calcite on matrix. Properly called \"hydroxyapophyllite-(K),\" hydroxyapophyllite is a variety of apophyllite that is typically colorless \u003cmeta charset=\"utf-8\"\u003eto semi-translucent white with inclusions. It more frequently grows cubic crystals, but these specimens from the renowned N'Chwaning Mines region form square tabular crystals similar to wulfenite.\u003c\/p\u003e\n\u003cp\u003eThe \u003cmeta charset=\"utf-8\"\u003ehydroxyapophyllite crystal is a well-formed tabular square measuring 8mm. The matte brown mineral coating the specimen is lizardite, which often grows in small spots along the junctions of the hydroxyapophyllite crystal. In this case it forms a nice gradient across the surface. The crystal is attached to a piece of matrix coated in calcite druzy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUV reactivity\u003c\/strong\u003e \u003cmeta charset=\"utf-8\"\u003eSome calcite fluoresces and phosphoresces weak red under 365 nm UV light. It can cause the \u003cmeta charset=\"utf-8\"\u003ehydroxyapophyllite crystals growing over it to glow a weak red—try it in a dark room \u003cmeta charset=\"utf-8\"\u003ewith a strong flashlight.\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003e** Brittle warning!\u003c\/strong\u003e Hydroxyapophyllite specimens are somewhat delicate and may shed pieces. Use care if you remove the specimen from the thumbnail box. \u003cmeta charset=\"utf-8\"\u003eThe specimen is mounted with tack. If small amounts stick to the mineral, just ball up the tack and press it onto the spots a few times until they stick to the ball.\u003c\/p\u003e","brand":"Pretty Ugly Things","offers":[{"title":"Default Title","offer_id":44579236708503,"sku":null,"price":9.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0639\/5192\/9495\/files\/IMG_3239.jpg?v=1731438829"},{"product_id":"dolomite-snowflake-dolomite-ps-after-aragonite","title":"Dolomite snowflake (dolomite ps. after aragonite)","description":"\u003cp\u003e\u003cstrong\u003eLocale: \u003c\/strong\u003eRoswell, New Mexico\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox dimensions:\u003c\/strong\u003e 1.5 x 1.25\"\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox weight:\u003c\/strong\u003e 85g\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThese unusual pseudomorphs of dolomite after aragonite have earned the name “snowflake” because of their hexagonal shape which is often striated to give the mineral an appearance like a chunky snowflake. ‘Pseudomorph’ means the mineral initially grew as aragonite, and then through geological processes the aragonite was replaced with dolomite. The new mineral will retain the shape of the original growth. \u003c\/p\u003e\n\u003cp\u003eWith dolomite snowflakes, the aragonite crystal habit is referred to as ‘pseudo-hexagonal’ meaning the crystals that appear hexagonal are actually formed of multiple intergrown crystals (twinned growth). The \u003cmeta charset=\"utf-8\"\u003epseudo-hexagonal crystals grow similar to the arms of its namesake snowflake, forming six symmetric small pointed pie-wedges (you may be able to tell, the boundary between crystals is about halfway between points).\u003c\/p\u003e\n\u003cp\u003eThis pseudo-hexagonal crystal habit is common in aragonite! Purple aragonite and sputnik aragonite also have a pseudo-hexagonal habit and get their hexagonal crystal shape from cyclic twinned growth—studied closely you can see similarities with the crystal growth of dolomite snowflakes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUV reactivity \u003c\/strong\u003eThis material reacts well, fluorescing white with orange spots under 365nm UV light. It also has moderately strong phosphorescence of a yellowish-green color.\u003c\/p\u003e","brand":"Pretty Ugly Things","offers":[{"title":"Default Title","offer_id":44582048333975,"sku":"","price":30.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0639\/5192\/9495\/files\/IMG_3282_7f46be8f-9cce-4aed-91b0-54c3d7b5d4b6.jpg?v=1731438326"},{"product_id":"dolomite-snowflake-dolomite-ps-after-aragonite-1","title":"Dolomite snowflake (dolomite ps. after aragonite)","description":"\u003cp\u003e\u003cstrong\u003eLocale: \u003c\/strong\u003eRoswell, New Mexico\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox dimensions:\u003c\/strong\u003e 1.5 x 1\"\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox weight:\u003c\/strong\u003e 93g\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThese unusual pseudomorphs of dolomite after aragonite have earned the name “snowflake” because of their hexagonal shape which is often striated to give the mineral an appearance like a chunky snowflake. ‘Pseudomorph’ means the mineral initially grew as aragonite, and then through geological processes the aragonite was replaced with dolomite. The new mineral will retain the shape of the original growth. \u003c\/p\u003e\n\u003cp\u003eWith dolomite snowflakes, the aragonite crystal habit is referred to as ‘pseudo-hexagonal’ meaning the crystals that appear hexagonal are actually formed of multiple intergrown crystals (twinned growth). The \u003cmeta charset=\"utf-8\"\u003epseudo-hexagonal crystals grow similar to the arms of its namesake snowflake, forming six symmetric small pointed pie-wedges (you may be able to tell, the boundary between crystals is about halfway between points).\u003c\/p\u003e\n\u003cp\u003eThis pseudo-hexagonal crystal habit is common in aragonite! Purple aragonite and sputnik aragonite also have a pseudo-hexagonal habit and get their hexagonal crystal shape from cyclic twinned growth—studied closely you can see similarities with the crystal growth of dolomite snowflakes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUV reactivity \u003c\/strong\u003eThis material reacts well, fluorescing strong orange  under 365nm UV light. It also has moderately strong phosphorescence of a yellowish-green color. \u003cmeta charset=\"utf-8\"\u003eThis specimen also has an irregular cluster of attempted-twinned-growth on one side, which fluoresces whitish.\u003c\/p\u003e","brand":"Pretty Ugly Things","offers":[{"title":"Default Title","offer_id":44582142345367,"sku":null,"price":32.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0639\/5192\/9495\/files\/IMG_3287.jpg?v=1731438394"},{"product_id":"dolomite-snowflake-dolomite-ps-after-aragonite-2","title":"Dolomite snowflake (dolomite ps. after aragonite)","description":"\u003cp\u003e\u003cstrong\u003eLocale: \u003c\/strong\u003eRoswell, New Mexico\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox dimensions:\u003c\/strong\u003e 1.75 x 1\"\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox weight:\u003c\/strong\u003e 131g\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThese unusual pseudomorphs of dolomite after aragonite have earned the name “snowflake” because of their hexagonal shape which is often striated to give the mineral an appearance like a chunky snowflake. ‘Pseudomorph’ means the mineral initially grew as aragonite, and then through geological processes the aragonite was replaced with dolomite. The new mineral will retain the shape of the original growth. \u003c\/p\u003e\n\u003cp\u003eWith dolomite snowflakes, the aragonite crystal habit is referred to as ‘pseudo-hexagonal’ meaning the crystals that appear hexagonal are actually formed of multiple intergrown crystals (twinned growth). The \u003cmeta charset=\"utf-8\"\u003epseudo-hexagonal crystals grow similar to the arms of its namesake snowflake, forming six symmetric small pointed pie-wedges (you may be able to tell, the boundary between crystals is about halfway between points).\u003c\/p\u003e\n\u003cp\u003eThis pseudo-hexagonal crystal habit is common in aragonite! Purple aragonite and sputnik aragonite also have a pseudo-hexagonal habit and get their hexagonal crystal shape from cyclic twinned growth—studied closely you can see similarities with the crystal growth of dolomite snowflakes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUV reactivity \u003c\/strong\u003eThis material reacts well, fluorescing white with orange spots under 365nm UV light. It also has moderately strong phosphorescence of a yellowish-green color.\u003c\/p\u003e","brand":"Pretty Ugly Things","offers":[{"title":"Default Title","offer_id":44582157287575,"sku":null,"price":32.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0639\/5192\/9495\/files\/IMG_3288_07e073ef-c329-42a9-922c-86fcd6e6980b.jpg?v=1731438412"},{"product_id":"dolomite-snowflake-dolomite-ps-after-aragonite-3","title":"Dolomite snowflake (dolomite ps. after aragonite)","description":"\u003cp\u003e\u003cstrong\u003eLocale: \u003c\/strong\u003eRoswell, New Mexico\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox dimensions:\u003c\/strong\u003e 2.25 x 1.5\"\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox weight:\u003c\/strong\u003e 225g\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThese unusual pseudomorphs of dolomite after aragonite have earned the name “snowflake” because of their hexagonal shape which is often striated to give the mineral an appearance like a chunky snowflake. ‘Pseudomorph’ means the mineral initially grew as aragonite, and then through geological processes the aragonite was replaced with dolomite. The new mineral will retain the shape of the original growth. \u003c\/p\u003e\n\u003cp\u003eWith dolomite snowflakes, the aragonite crystal habit is referred to as ‘pseudo-hexagonal’ meaning the crystals that appear hexagonal are actually formed of multiple intergrown crystals (twinned growth). The \u003cmeta charset=\"utf-8\"\u003epseudo-hexagonal crystals grow similar to the arms of its namesake snowflake, forming six symmetric small pointed pie-wedges (you may be able to tell, the boundary between crystals is about halfway between points). \u003cmeta charset=\"utf-8\"\u003eThis specimen has especially distinct edges.\u003c\/p\u003e\n\u003cp\u003eThis pseudo-hexagonal crystal habit is common in aragonite! Purple aragonite and sputnik aragonite also have a pseudo-hexagonal habit and get their hexagonal crystal shape from cyclic twinned growth—studied closely you can see similarities with the crystal growth of dolomite snowflakes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUV reactivity \u003c\/strong\u003eThis material reacts well, fluorescing white with orange spots under 365nm UV light. It also has moderately strong phosphorescence of a yellowish-green color.\u003c\/p\u003e","brand":"Pretty Ugly Things","offers":[{"title":"Default Title","offer_id":44582172164247,"sku":null,"price":46.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0639\/5192\/9495\/files\/IMG_3296_23de8398-b3bc-4034-bf4f-b38b9afb7f5b.jpg?v=1731438449"},{"product_id":"smoky-quartz-with-hyalite","title":"Smoky quartz with hyalite","description":"\u003cp\u003e\u003cstrong\u003eLocale: \u003c\/strong\u003eErongo Mountain, Namibia\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox dimensions: \u003c\/strong\u003e3.75 x 2.5 x 1.5\"\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox weight: \u003c\/strong\u003e229g\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eSmoky quartz from the Erongo region is typically a quite dark brown-black color, with \u003cmeta charset=\"utf-8\"\u003elower clarity due to natural inclusions, and a flat surface luster \u003cmeta charset=\"utf-8\"\u003ecaused by etching. It grows sculptural elongated points like a spindle, \u003cmeta charset=\"utf-8\"\u003elike this tapered point. \u003cmeta charset=\"utf-8\"\u003eThe main smoky quartz point is over three inches and attached to several partial prisms and shard-like pieces. This specimen is absolutely thick with hyalite, giving the smoky quartz a witchy appearance. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eSmoky quartz gets its dark coloration from trace elements that tint dark when the quartz is exposed to natural radiation. \u003cmeta charset=\"utf-8\"\u003eDon’t worry, the specimen can't expose you to radiation—even if the hyalite turns \"radioactive\" green under UV light due to trace elements of uranium.\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eHyalite is a form of opal, which in turn is part of the broader quartz family. Related minerals commonly grow together because they have similar requirements for growth: in this case, the availability of silica that is the basis for the quartz family. Growing conditions that initially produced quartz changed, and a later generation of growth deposited the less common hyalite on the specimen.\u003c\/p\u003e\n\u003cp\u003eHyalite displays botryoidal growth (bunches of “grape-like” round crystals) with a glossy high luster like a layer of bubbles. I think it looks like mermaid caviar! Hyalite can appear fluid with formations that look like the splash from a drip frozen in place, or as if the edge has been peeled up away from the quartz like a tutu. This is displayed especially well on this point, which looks as though a drip of paint landed on the tip.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUV reactivity\u003c\/strong\u003e Hyalite is so strongly UV reactive that you can see it in sunlight. Under indoor lighting it is pale yellow to golden in color, but turns visibly greenish yellow when exposed to the UV in sunlight. \u003cstrong\u003e395nm UV \u003c\/strong\u003efluoresces a strong green, with an icy blue undertone. Best viewed in darker conditions. \u003cstrong\u003e365nm UV\u003c\/strong\u003e fluoresces a strong yellowish-green color, generally visible even in bright lighting. No phosphorescence detected.\u003c\/p\u003e","brand":"Pretty Ugly Things","offers":[{"title":"Default Title","offer_id":44582815432855,"sku":"","price":145.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0639\/5192\/9495\/files\/IMG_25382.jpg?v=1725567161"},{"product_id":"smoky-quartz-with-hyalite-1","title":"Smoky quartz point with hyalite","description":"\u003cp\u003e\u003cstrong\u003eLocale: \u003c\/strong\u003eErongo Mountain, Erongo Region, Namibia\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePoint length: \u003c\/strong\u003e5.5\"\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox weight: \u003cmeta charset=\"utf-8\"\u003e\u003c\/strong\u003e\u003cspan data-sheets-root=\"1\"\u003e278g\u003c\/span\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e \u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eSmoky quartz from the Erongo region is typically a quite dark brown-black color, with \u003cmeta charset=\"utf-8\"\u003elower clarity due to natural inclusions, and a flat surface luster \u003cmeta charset=\"utf-8\"\u003ecaused by etching. It grows sculptural elongated points like a spindle \u003cmeta charset=\"utf-8\"\u003ewith nice striations. Paired with hyalite, the smoky quartz takes on a witchy appearance. I would dub these points \"witch's fingers\" but there is already a variety of quartz called that so I use \"witch's manicure\" instead. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eSmoky quartz gets its dark coloration from trace elements that tint dark when the quartz is exposed to natural radiation. \u003cmeta charset=\"utf-8\"\u003eDon’t worry, the specimen can't expose you to radiation—even if the hyalite turns \"radioactive\" green under UV light due to trace elements of uranium.\u003c\/p\u003e\n\u003cp\u003eHyalite is a form of opal, which in turn is part of the broader quartz family. Related minerals commonly grow together because they have similar requirements for growth: in this case, the availability of silica that is the basis for the quartz family. Growing conditions that initially produced quartz changed, and a later generation of growth deposited the less common hyalite on the specimen.\u003c\/p\u003e\n\u003cp\u003eHyalite displays botryoidal growth (bunches of “grape-like” round crystals) with a glossy high luster like a layer of bubbles. I think it looks like mermaid caviar! Hyalite can appear fluid with formations that look like the splash from a drip frozen in place, or as if the edge has been peeled up away from the quartz like a tutu.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUV reactivity\u003c\/strong\u003e Hyalite is so strongly UV reactive that you can see it in sunlight. Under indoor lighting it is pale yellow to golden in color, but turns visibly greenish yellow when exposed to the UV in sunlight. \u003cstrong\u003e395nm UV \u003c\/strong\u003efluoresces a strong green, with an icy blue undertone. Best viewed in darker conditions. \u003cstrong\u003e365nm UV\u003c\/strong\u003e fluoresces a strong yellowish-green color, generally visible even in bright lighting. No phosphorescence detected.\u003c\/p\u003e\n\u003cstyle type=\"text\/css\"\u003e\u003c!--td {border: 1px solid #cccccc;}br {mso-data-placement:same-cell;}--\u003e\u003c\/style\u003e","brand":"Pretty Ugly Things","offers":[{"title":"Default Title","offer_id":44582830506135,"sku":null,"price":65.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0639\/5192\/9495\/files\/IMG_4914.jpg?v=1725567864"},{"product_id":"smoky-quartz-point-with-hyalite","title":"Smoky quartz point with hyalite","description":"\u003cp\u003e\u003cstrong\u003eLocale: \u003c\/strong\u003eErongo Mountain, Namibia\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePoint length: \u003c\/strong\u003e4.5\"\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox weight: \u003c\/strong\u003e\u003cspan data-sheets-root=\"1\"\u003e113g\u003c\/span\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e \u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eSmoky quartz from the Erongo region is typically a quite dark brown-black color, with \u003cmeta charset=\"utf-8\"\u003elower clarity due to natural inclusions, and a flat surface luster \u003cmeta charset=\"utf-8\"\u003ecaused by etching. It grows sculptural elongated points like a spindle \u003cmeta charset=\"utf-8\"\u003ewith nice striations. Paired with hyalite, the smoky quartz takes on a witchy appearance. I would dub these points \"witch's fingers\" but there is already a variety of quartz called that so I use \"witch's manicure\" instead. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eSmoky quartz gets its dark coloration from trace elements that tint dark when the quartz is exposed to natural radiation. \u003cmeta charset=\"utf-8\"\u003eDon’t worry, the specimen can't expose you to radiation—even if the hyalite turns \"radioactive\" green under UV light due to trace elements of uranium.\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eHyalite is a form of opal, which in turn is part of the broader quartz family. Related minerals commonly grow together because they have similar requirements for growth: in this case, the availability of silica that is the basis for the quartz family. Growing conditions that initially produced quartz changed, \u003cmeta charset=\"utf-8\"\u003eand a later generation of growth \u003cmeta charset=\"utf-8\"\u003edeposited the less common hyalite on the specimen.\u003c\/p\u003e\n\u003cp\u003eHyalite displays botryoidal growth (bunches of “grape-like” round crystals) with a glossy high luster like a layer of bubbles. I think it looks like mermaid caviar! Hyalite can appear fluid with formations that look like the splash from a drip frozen in place, or as if the edge has been peeled up away from the quartz like a tutu. The spheres are fine on this specimen, forming a thin layer that is eerily shaped like a faceless specter.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eThis material often has a mish-mash of broken minerals entrapped and attached to the quartz surface by the hyalite. The opaque white mineral is albite and the black is schorl (black tourmaline).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUV reactivity\u003c\/strong\u003e Hyalite is so strongly UV reactive that you can see it in sunlight. Under indoor lighting it is pale yellow to golden in color, but turns visibly greenish yellow when exposed to the UV in sunlight. \u003cstrong\u003e395nm UV \u003c\/strong\u003efluoresces a strong green, with an icy blue undertone. Best viewed in darker conditions. \u003cstrong\u003e365nm UV\u003c\/strong\u003e fluoresces a strong yellowish-green color, generally visible even in bright lighting. No phosphorescence detected.\u003c\/p\u003e\n\u003cstyle type=\"text\/css\"\u003e\u003c!--td {border: 1px solid #cccccc;}br {mso-data-placement:same-cell;}--\u003e\u003c\/style\u003e","brand":"Pretty Ugly Things","offers":[{"title":"Default Title","offer_id":44583202816151,"sku":null,"price":55.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0639\/5192\/9495\/files\/IMG_4948.jpg?v=1725577346"},{"product_id":"smoky-quartz-point-with-hyalite-1","title":"Smoky quartz point with hyalite","description":"\u003cp\u003e\u003cstrong\u003eLocale: \u003c\/strong\u003eErongo Mountain, Namibia\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePoint length: \u003c\/strong\u003e3.5\"\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox weight: \u003c\/strong\u003e\u003cspan data-sheets-root=\"1\"\u003e42g\u003c\/span\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e \u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eSmoky quartz from the Erongo region is typically a quite dark brown-black color, with \u003cmeta charset=\"utf-8\"\u003elower clarity due to natural inclusions, and a flat surface luster \u003cmeta charset=\"utf-8\"\u003ecaused by etching. It grows sculptural elongated points like a spindle \u003cmeta charset=\"utf-8\"\u003ewith nice striations, \u003cmeta charset=\"utf-8\"\u003eespecially elegant in this specimen with a well-formed point. \u003c\/span\u003e\u003cspan\u003ePaired with hyalite, the smoky quartz takes on a witchy appearance. I would dub these points \"witch's fingers\" but there is already a variety of quartz called that so I use \"witch's manicure\" instead.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eSmoky quartz gets its dark coloration from trace elements that tint dark when the quartz is exposed to natural radiation. \u003cmeta charset=\"utf-8\"\u003eDon’t worry, the specimen can't expose you to radiation—even if the hyalite turns \"radioactive\" green under UV light due to trace elements of uranium.\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eHyalite is a form of opal, which in turn is part of the broader quartz family. Related minerals commonly grow together because they have similar requirements for growth: in this case, the availability of silica that is the basis for the quartz family. Growing conditions that initially produced quartz changed, \u003cmeta charset=\"utf-8\"\u003eand a later generation of growth \u003cmeta charset=\"utf-8\"\u003edeposited the less common hyalite on the specimen.\u003c\/p\u003e\n\u003cp\u003eHyalite displays botryoidal growth (bunches of “grape-like” round crystals) with a glossy high luster like a layer of bubbles. I think it looks like mermaid caviar! Hyalite can appear fluid with formations that look like the splash from a drip frozen in place, or as if the edge has been peeled up away from the quartz like a tutu.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUV reactivity\u003c\/strong\u003e Hyalite is so strongly UV reactive that you can see it in sunlight. Under indoor lighting it is pale yellow to golden in color, but turns visibly greenish yellow when exposed to the UV in sunlight. \u003cstrong\u003e395nm UV \u003c\/strong\u003efluoresces a strong green, with an icy blue undertone. Best viewed in darker conditions. \u003cstrong\u003e365nm UV\u003c\/strong\u003e fluoresces a strong yellowish-green color, generally visible even in bright lighting. No phosphorescence detected.\u003c\/p\u003e\n\u003cstyle type=\"text\/css\"\u003e\u003c!--td {border: 1px solid #cccccc;}br {mso-data-placement:same-cell;}--\u003e\u003c\/style\u003e","brand":"Pretty Ugly Things","offers":[{"title":"Default Title","offer_id":44583240302743,"sku":null,"price":38.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0639\/5192\/9495\/files\/IMG_4967.jpg?v=1725578269"},{"product_id":"smoky-quartz-point-with-hyalite-2","title":"Smoky quartz point with hyalite","description":"\u003cp\u003e\u003cstrong\u003eLocale: \u003c\/strong\u003eErongo Mountain, Namibia\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePoint length: \u003c\/strong\u003e4\"\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox weight: \u003c\/strong\u003e\u003cspan data-sheets-root=\"1\"\u003e183g\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e \u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eSmoky quartz from the Erongo region is typically a quite dark brown-black color, with \u003cmeta charset=\"utf-8\"\u003elower clarity due to natural inclusions, and a flat surface luster \u003cmeta charset=\"utf-8\"\u003ecaused by etching. It grows sculptural elongated points like a spindle \u003cmeta charset=\"utf-8\"\u003ewith nice striations. Paired with hyalite, the smoky quartz takes on a witchy appearance. I would dub these points \"witch's fingers\" but there is already a variety of quartz called that so I use \"witch's manicure\" instead. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eSmoky quartz gets its dark coloration from trace elements that tint dark when the quartz is exposed to natural radiation. \u003cmeta charset=\"utf-8\"\u003eDon’t worry, the specimen can't expose you to radiation—even if the hyalite turns \"radioactive\" green under UV light due to trace elements of uranium.\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eHyalite is a form of opal, which in turn is part of the broader quartz family. Related minerals commonly grow together because they have similar requirements for growth: in this case, the availability of silica that is the basis for the quartz family. Growing conditions that initially produced quartz changed, and a later generation of growth deposited the less common hyalite on the specimen.\u003c\/p\u003e\n\u003cp\u003eHyalite displays botryoidal growth (bunches of “grape-like” round crystals) with a glossy high luster like a layer of bubbles. I think it looks like mermaid caviar! Hyalite can appear fluid with formations that look like the splash from a drip frozen in place, or as if the edge has been peeled up away from the quartz like a tutu. \u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eThis material often has a mishmash of broken minerals entrapped and attached to the quartz surface by the hyalite. The opaque white mineral is albite and the black is schorl (black tourmaline). \u003cmeta charset=\"utf-8\"\u003eAt the base of the point, there is fine needle-like growth which may be hyalite. On other specimens it takes on a purple amethyst hue on the ends, possibly another shift in growing conditions causing a transition from hyalite to a different type of quartz.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUV reactivity\u003c\/strong\u003e Hyalite is so strongly UV reactive that you can see it in sunlight. Under indoor lighting it is pale yellow to golden in color, but turns visibly greenish yellow when exposed to the UV in sunlight. \u003cstrong\u003e395nm UV \u003c\/strong\u003efluoresces a strong green, with an icy blue undertone. Best viewed in darker conditions. \u003cstrong\u003e365nm UV\u003c\/strong\u003e fluoresces a strong yellowish-green color, generally visible even in bright lighting. No phosphorescence detected.\u003c\/p\u003e\n\u003cstyle type=\"text\/css\"\u003e\u003c!--td {border: 1px solid #cccccc;}br {mso-data-placement:same-cell;}--\u003e\u003c\/style\u003e","brand":"Pretty Ugly Things","offers":[{"title":"Default Title","offer_id":44583284965527,"sku":null,"price":65.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0639\/5192\/9495\/files\/IMG_4995.jpg?v=1725579117"},{"product_id":"smoky-quartz-point-with-hyalite-3","title":"Smoky quartz point with hyalite \"The Whale\"","description":"\u003cp\u003e\u003cstrong\u003eLocale: \u003c\/strong\u003eErongo Mountain, Namibia\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePoint length: \u003c\/strong\u003e4.75\"\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox weight: \u003c\/strong\u003e\u003cspan data-sheets-root=\"1\"\u003e171g\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eI call this one \"the whale\"! The point curves and has a smaller point sticking out of it, appearing like a breaching whale.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eSmoky quartz from the Erongo region is typically a quite dark brown-black color, with \u003cmeta charset=\"utf-8\"\u003elower clarity due to natural inclusions, and a flat surface luster \u003cmeta charset=\"utf-8\"\u003ecaused by etching. It grows sculptural angular points \u003cmeta charset=\"utf-8\"\u003ewith nice striations. Paired with hyalite, the smoky quartz takes on a witchy appearance. I would dub these points \"witch's fingers\" but there is already a variety of quartz called that so I use \"witch's manicure\" instead. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eSmoky quartz gets its dark coloration from trace elements that tint dark when the quartz is exposed to natural radiation. \u003cmeta charset=\"utf-8\"\u003eDon’t worry, the specimen can't expose you to radiation—even if the hyalite turns \"radioactive\" green under UV light due to trace elements of uranium.\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eHyalite is a form of opal, which in turn is part of the broader quartz family. Related minerals commonly grow together because they have similar requirements for growth: in this case, the availability of silica that is the basis for the quartz family. Growing conditions that initially produced quartz changed, and a later generation of growth \u003cmeta charset=\"utf-8\"\u003edeposited the less common hyalite on the specimen.\u003c\/p\u003e\n\u003cp\u003eHyalite displays botryoidal growth (bunches of “grape-like” round crystals) with a glossy high luster like a layer of bubbles. I think it looks like mermaid caviar! Hyalite can appear fluid with formations that look like the splash from a drip frozen in place, or as if the edge has been peeled up away from the quartz like a tutu. \u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eNear the base of the \"flipper,\" there is a cluster of fine needle-like growth crystals which I don't believe is hyalite, but may simply be quartz needles. Some appear capped almost like miniature quartz scepter. On other specimens the ends appear cubic and can take on a purple amethyst hue. It's possible they are actually extremely small fluorite crystals, since this fluorite from this locale tends to have a cubic crystal habit.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUV reactivity\u003c\/strong\u003e Hyalite is so strongly UV reactive that you can see it in sunlight. Under indoor lighting it is pale yellow to golden in color, but turns visibly greenish yellow when exposed to the UV in sunlight. \u003cstrong\u003e395nm UV \u003c\/strong\u003efluoresces a strong green, with an icy blue undertone. Best viewed in darker conditions. \u003cstrong\u003e365nm UV\u003c\/strong\u003e fluoresces a strong yellowish-green color, generally visible even in bright lighting. No phosphorescence detected.\u003c\/p\u003e","brand":"Pretty Ugly Things","offers":[{"title":"Default Title","offer_id":44583367803031,"sku":null,"price":65.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0639\/5192\/9495\/files\/IMG_5037.jpg?v=1725581380"},{"product_id":"smoky-quartz-point-with-hyalite-4","title":"Smoky quartz point with hyalite","description":"\u003cp\u003e\u003cstrong\u003eLocale: \u003c\/strong\u003eErongo Mountain, Namibia\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePoint length: \u003c\/strong\u003e4.5\"\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox weight: \u003c\/strong\u003e208g\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e \u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eSmoky quartz from the Erongo region is typically a quite dark brown-black color, with \u003cmeta charset=\"utf-8\"\u003elower clarity due to natural inclusions, and a flat surface luster \u003cmeta charset=\"utf-8\"\u003ecaused by etching. It grows sculptural angular points \u003cmeta charset=\"utf-8\"\u003ewith nice striations. \u003cmeta charset=\"utf-8\"\u003eWhat looks like a 'bite' out of one side of this large point is the impression left by another quartz crystal. \u003c\/span\u003e\u003cspan\u003ePaired with hyalite, the smoky quartz takes on a witchy appearance. I would dub these points \"witch's fingers\" but there is already a variety of quartz called that so I use \"witch's manicure\" instead. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eSmoky quartz gets its dark coloration from trace elements that tint dark when the quartz is exposed to natural radiation. \u003cmeta charset=\"utf-8\"\u003eDon’t worry, the specimen can't expose you to radiation—even if the hyalite turns \"radioactive\" green under UV light due to trace elements of uranium.\u003c\/p\u003e\n\u003cp\u003eHyalite is a form of opal, which in turn is part of the broader quartz family. Related minerals commonly grow together because they have similar requirements for growth: in this case, the availability of silica that is the basis for the quartz family. Growing conditions that initially produced quartz changed, and a later generation of growth deposited the less common hyalite on the specimen.\u003c\/p\u003e\n\u003cp\u003eHyalite displays botryoidal growth (bunches of “grape-like” round crystals) with a glossy high luster like a layer of bubbles. I think it looks like mermaid caviar! Hyalite can appear fluid with formations that look like the splash from a drip frozen in place, or as if the edge has been peeled up away from the quartz like a tutu. On this point, the hyalite is rather fine and flat to the surface.\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eThis material often has a mish-mash of broken minerals entrapped and attached to the quartz surface by the hyalite. The opaque white mineral is albite and the black is schorl (black tourmaline).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUV reactivity\u003c\/strong\u003e Hyalite is so strongly UV reactive that you can see it in sunlight. Under indoor lighting it is pale yellow to golden in color, but turns visibly greenish yellow when exposed to the UV in sunlight. \u003cstrong\u003e395nm UV \u003c\/strong\u003efluoresces a strong green, with an icy blue undertone. Best viewed in darker conditions. \u003cstrong\u003e365nm UV\u003c\/strong\u003e fluoresces a strong yellowish-green color, generally visible even in bright lighting. No phosphorescence detected.\u003c\/p\u003e\n\u003cstyle type=\"text\/css\"\u003e\u003c!--td {border: 1px solid #cccccc;}br {mso-data-placement:same-cell;}--\u003e\u003c\/style\u003e","brand":"Pretty Ugly Things","offers":[{"title":"Default Title","offer_id":44583673692311,"sku":null,"price":60.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0639\/5192\/9495\/files\/IMG_5052.jpg?v=1725588431"},{"product_id":"smoky-quartz-point-with-hyalite-5","title":"Smoky quartz point with hyalite","description":"\u003cp\u003e\u003cstrong\u003eLocale: \u003c\/strong\u003eErongo Mountain, Namibia\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePoint length: \u003c\/strong\u003e3.75\"\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox weight: \u003c\/strong\u003e\u003cspan data-sheets-root=\"1\"\u003e141g\u003c\/span\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e \u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eSmoky quartz from the Erongo region is typically a quite dark brown-black color, with \u003cmeta charset=\"utf-8\"\u003elower clarity due to natural inclusions, and a flat surface luster \u003cmeta charset=\"utf-8\"\u003ecaused by etching. It grows sculptural elongated points like a spindle \u003cmeta charset=\"utf-8\"\u003ewith nice striations. Paired with hyalite, the smoky quartz takes on a witchy appearance. I would dub these points \"witch's fingers\" but there is already a variety of quartz called that so I use \"witch's manicure\" instead. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eSmoky quartz gets its dark coloration from trace elements that tint dark when the quartz is exposed to natural radiation. \u003cmeta charset=\"utf-8\"\u003eDon’t worry, the specimen can't expose you to radiation—even if the hyalite turns \"radioactive\" green under UV light due to trace elements of uranium.\u003c\/p\u003e\n\u003cp\u003eHyalite is a form of opal, which in turn is part of the broader quartz family. Related minerals commonly grow together because they have similar requirements for growth: in this case, the availability of silica that is the basis for the quartz family. Growing conditions that initially produced quartz changed, and a later generation of growth deposited the less common hyalite on the specimen.\u003c\/p\u003e\n\u003cp\u003eHyalite displays botryoidal growth (bunches of “grape-like” round crystals) with a glossy high luster like a layer of bubbles. I think it looks like mermaid caviar! Hyalite can appear fluid with formations that look like the splash from a drip frozen in place, or as if the edge has been peeled up away from the quartz like a tutu. The thin hyalite coating on this piece is crackled.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eThis material often has a mish-mash of broken minerals entrapped and attached to the quartz surface by the hyalite. The grayish broken shards are smoky quartz and the black is schorl (black tourmaline). On one side, white overgrowth (likely low quality white hyalite) on the quartz looks like an alien on hallucinogens.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUV reactivity\u003c\/strong\u003e Hyalite is so strongly UV reactive that you can see it in sunlight. Under indoor lighting it is pale yellow to golden in color, but turns visibly greenish yellow when exposed to the UV in sunlight. \u003cstrong\u003e395nm UV \u003c\/strong\u003efluoresces a strong green, with an icy blue undertone. Best viewed in darker conditions. \u003cstrong\u003e365nm UV\u003c\/strong\u003e fluoresces a strong yellowish-green color, generally visible even in bright lighting. No phosphorescence detected.\u003c\/p\u003e\n\u003cstyle type=\"text\/css\"\u003e\u003c!--td {border: 1px solid #cccccc;}br {mso-data-placement:same-cell;}--\u003e\u003c\/style\u003e","brand":"Pretty Ugly Things","offers":[{"title":"Default Title","offer_id":44583729070231,"sku":null,"price":60.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0639\/5192\/9495\/files\/IMG_5090.jpg?v=1725589171"},{"product_id":"smoky-quartz-point-with-hyalite-6","title":"Smoky quartz point with hyalite","description":"\u003cp\u003e\u003cstrong\u003eLocale: \u003c\/strong\u003eErongo Mountain, Namibia\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePoint length: \u003c\/strong\u003e3.5\"\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox weight: \u003c\/strong\u003e\u003cspan data-sheets-root=\"1\"\u003e145g\u003c\/span\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cstyle type=\"text\/css\"\u003e\u003c!--td {border: 1px solid #cccccc;}br {mso-data-placement:same-cell;}--\u003e\u003c\/style\u003e\n\u003cp dir=\"ltr\"\u003e \u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eSmoky quartz from the Erongo region is typically a quite dark brown-black color, with \u003cmeta charset=\"utf-8\"\u003elower clarity due to natural inclusions, and a flat surface luster \u003cmeta charset=\"utf-8\"\u003ecaused by etching. It grows sculptural angular points \u003cmeta charset=\"utf-8\"\u003ewith nice striations. Paired with hyalite, the smoky quartz takes on a witchy appearance. I would dub these points \"witch's fingers\" but there is already a variety of quartz called that so I use \"witch's manicure\" instead. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eSmoky quartz gets its dark coloration from trace elements that tint dark when the quartz is exposed to natural radiation. \u003cmeta charset=\"utf-8\"\u003eDon’t worry, the specimen can't expose you to radiation—even if the hyalite turns \"radioactive\" green under UV light due to trace elements of uranium.\u003c\/p\u003e\n\u003cp\u003eHyalite is a form of opal, which in turn is part of the broader quartz family. Related minerals commonly grow together because they have similar requirements for growth: in this case, the availability of silica that is the basis for the quartz family. Growing conditions that initially produced quartz changed, and a later generation of growth deposited the less common hyalite on the specimen.\u003c\/p\u003e\n\u003cp\u003eHyalite displays botryoidal growth (bunches of “grape-like” round crystals) with a glossy high luster like a layer of bubbles. I think it looks like mermaid caviar! Hyalite can appear fluid with formations that look like the splash from a drip frozen in place, or as if the edge has been peeled up away from the quartz like a tutu. This piece has well-formed hyalite with especially fluid-appearing formations.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eThis material often has a mishmash of broken minerals entrapped and attached to the quartz surface by the hyalite. The opaque white mineral is albite and the black is schorl (black tourmaline). There is fine \u003cmeta charset=\"utf-8\"\u003eneedle-like growth on the mishmash which may be hyalite. On other specimens it takes on a purple amethyst hue on the ends, possibly another shift in growing conditions causing a transition from hyalite to a different type of quartz.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUV reactivity\u003c\/strong\u003e Hyalite is so strongly UV reactive that you can see it in sunlight. Under indoor lighting it is pale yellow to golden in color, but turns visibly greenish yellow when exposed to the UV in sunlight. \u003cstrong\u003e395nm UV \u003c\/strong\u003efluoresces a strong green, with an icy blue undertone. Best viewed in darker conditions. \u003cstrong\u003e365nm UV\u003c\/strong\u003e fluoresces a strong yellowish-green color, generally visible even in bright lighting. No phosphorescence detected.\u003c\/p\u003e\n\u003cstyle type=\"text\/css\"\u003e\u003c!--td {border: 1px solid #cccccc;}br {mso-data-placement:same-cell;}--\u003e\u003c\/style\u003e","brand":"Pretty Ugly Things","offers":[{"title":"Default Title","offer_id":44583746896023,"sku":null,"price":65.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0639\/5192\/9495\/files\/IMG_5112.jpg?v=1725590277"},{"product_id":"smoky-quartz-point-with-hyalite-7","title":"Smoky quartz point with hyalite","description":"\u003cp\u003e\u003cstrong\u003eLocale: \u003c\/strong\u003eErongo Mountain, Namibia\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003ePoint length: \u003c\/strong\u003e3\"\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox weight: \u003c\/strong\u003e\u003cspan data-sheets-root=\"1\"\u003e109g\u003c\/span\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e \u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eSmoky quartz from the Erongo region is typically a quite dark brown-black color, with \u003cmeta charset=\"utf-8\"\u003elower clarity due to natural inclusions, and a flat surface luster \u003cmeta charset=\"utf-8\"\u003ecaused by etching. It grows sculptural angular points \u003cmeta charset=\"utf-8\"\u003ewith nice striations like this triangular piece. \u003cmeta charset=\"utf-8\"\u003ePaired with hyalite, the smoky quartz takes on a witchy appearance. I would dub these points \"witch's fingers\" but there is already a variety of quartz called that so I use \"witch's manicure\" instead.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eThis point looks quite light colored from some angles, and near-black from others. The smoky quartz has ghostly dark tint around the areas coated in hyalite, and small dark spots nearby. Smoky quartz gets its dark coloration from trace elements that tint dark when the quartz is exposed to natural radiation. \u003cmeta charset=\"utf-8\"\u003eDon’t worry, the specimen can't expose you to radiation—even if the hyalite turns \"radioactive\" green under UV light due to trace elements of uranium.\u003c\/p\u003e\n\u003cp\u003eHyalite is a form of opal, which in turn is part of the broader quartz family. Related minerals commonly grow together because they have similar requirements for growth: in this case, the availability of silica that is the basis for the quartz family. Growing conditions that initially produced quartz changed, and a later generation of growth deposited the less common hyalite on the specimen.\u003c\/p\u003e\n\u003cp\u003eHyalite displays botryoidal growth (bunches of “grape-like” round crystals) with a glossy high luster like a layer of bubbles. I think it looks like mermaid caviar! Hyalite can appear fluid with formations that look like the splash from a drip frozen in place, or as if the edge has been peeled up away from the quartz like a tutu.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eThis material often \u003cmeta charset=\"utf-8\"\u003ehas a mish-mash of broken minerals entrapped and attached to the quartz surface by the hyalite, as found at the base of this piece. \u003cmeta charset=\"utf-8\"\u003eThe opaque white mineral is albite and the black is schorl (black tourmaline), with iron causing the orange coloration. Near it is a cluster of well-formed smaller smoky quartz crystals; when exposed to UV light this area of the quartz glows as if more hyalite is trapped inside the point, which is unusual given that it typically forms on the quartz surface (I didn't do the best job of photographing it!).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUV reactivity\u003c\/strong\u003e Hyalite is so strongly UV reactive that you can see it in sunlight. Under indoor lighting it is pale yellow to golden in color, but turns visibly greenish yellow when exposed to the UV in sunlight. \u003cstrong\u003e395nm UV \u003c\/strong\u003efluoresces a strong green, with an icy blue undertone. Best viewed in darker conditions. \u003cstrong\u003e365nm UV\u003c\/strong\u003e fluoresces a strong yellowish-green color, generally visible even in bright lighting. No phosphorescence detected.\u003c\/p\u003e\n\u003cstyle type=\"text\/css\"\u003e\u003c!--td {border: 1px solid #cccccc;}br {mso-data-placement:same-cell;}--\u003e\u003c\/style\u003e","brand":"Pretty Ugly Things","offers":[{"title":"Default Title","offer_id":44583864729751,"sku":"B2","price":85.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0639\/5192\/9495\/files\/IMG_3828_b5c4061f-e1a4-46b4-9acb-3ed11ab6782c.jpg?v=1771784847"},{"product_id":"smoky-quartz-with-hyalite-on-black-tourmaline","title":"Smoky quartz with hyalite on black tourmaline","description":"\u003cp\u003e\u003cstrong\u003eLocale: \u003c\/strong\u003eErongo Mountain, Namibia\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox dimensions: \u003c\/strong\u003e4.25 x 3 x 2\"\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox weight: \u003c\/strong\u003e\u003cspan data-sheets-root=\"1\"\u003e437g\u003c\/span\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cem\u003e** Loose piece on base\u003c\/em\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e \u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eSmoky quartz from the Erongo region is typically a quite dark brown-black color, with \u003cmeta charset=\"utf-8\"\u003elower clarity due to natural inclusions, and a flat surface luster caused by etching. This piece is a bit lighter than usual with some crystal faces glassy clear, providing a window inside. Erongo smoky grows sculptural angular points with nice striations like this trio of crystals perched atop a base of black tourmaline (schorl) crystals. It has some well-formed crystals with striations, and some interesting inverted hexagonal crystal shapes. Paired with hyalite and schorl, the smoky quartz takes on a witchy appearance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eSmoky quartz gets its dark coloration from trace elements that tint dark when the quartz is exposed to natural radiation. This piece has ghostly dark spots. \u003cmeta charset=\"utf-8\"\u003eDon’t worry, the specimen can't expose you to radiation—even if the hyalite turns \"radioactive\" green under UV light due to trace elements of uranium.\u003c\/p\u003e\n\u003cp\u003eHyalite is a form of opal, which in turn is part of the broader quartz family. Related minerals commonly grow together because they have similar requirements for growth: in this case, the availability of silica that is the basis for the quartz family. Growing conditions that initially produced quartz changed, and a later generation of growth deposited the less common hyalite on the specimen.\u003c\/p\u003e\n\u003cp\u003eHyalite displays botryoidal growth (bunches of “grape-like” round crystals) with a glossy high luster like a layer of bubbles. I think it looks like mermaid caviar! \u003cmeta charset=\"utf-8\"\u003eIt turns \"radioactive\" green under UV light due to trace elements of uranium. \u003cmeta charset=\"utf-8\"\u003eDon’t worry though, it's not enough to expose you to radiation. Hyalite can appear fluid with formations that look like the splash from a drip frozen in place, or as if the edge has been peeled up away from the quartz like a tutu.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUV reactivity\u003c\/strong\u003e Hyalite is so strongly UV reactive that you can see it in sunlight. Under indoor lighting it is pale yellow to golden in color, but turns visibly greenish yellow when exposed to the UV in sunlight. \u003cstrong\u003e395nm UV \u003c\/strong\u003efluoresces a strong green, with an icy blue undertone. Best viewed in darker conditions. \u003cstrong\u003e365nm UV\u003c\/strong\u003e fluoresces a strong yellowish-green color, generally visible even in bright lighting. No phosphorescence detected.\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003eLoose piece: \u003c\/strong\u003eThere is a slightly loose small schorl crystal in the base of the piece. It may dislodge with handling.\u003c\/p\u003e\n\u003cstyle type=\"text\/css\"\u003e\u003c!--td {border: 1px solid #cccccc;}br {mso-data-placement:same-cell;}--\u003e\u003c\/style\u003e","brand":"Pretty Ugly Things","offers":[{"title":"Default Title","offer_id":44583919255703,"sku":"B1","price":150.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0639\/5192\/9495\/files\/3whitelight.jpg?v=1725591746"},{"product_id":"smoky-quartz-with-hyalite-on-black-tourmaline-1","title":"Smoky quartz with hyalite on black tourmaline","description":"\u003cp\u003e\u003cstrong\u003eLocale: \u003c\/strong\u003eErongo Mountain, Namibia\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox dimensions: \u003c\/strong\u003e3 x 2.25 x 2\"\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox weight: \u003c\/strong\u003e274\u003cspan data-sheets-root=\"1\"\u003eg\u003c\/span\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e \u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eThis is one of my favorite specimens of Erongo hyalite, featuring a dramatic spray of quartz crystals thick with hyalite, perched atop a large piece of black tourmaline (schorl). The glossy schorl has the classic trigonal 'Mercedes' termination characteristic of Erongo material, with intricate growth patterns across the surface. The sides of the schorl are imprinted with the patterns of other crystals that grew next to it, mostly obscuring the vertical striations.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eThe smoky quartz of this specimen is nearly entirely covered by hyalite other than one well-formed crystal jutting out the bottom and a small one in the schorl. Erongo smoky grows elongated points like this trio of crystals, with a flat surface luster caused by etching. Paired with thick hyalite and schorl, the smoky quartz takes on a witchy appearance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eHyalite is a form of opal, which in turn is part of the broader quartz family. Related minerals commonly grow together because they have similar requirements for growth: in this case, the availability of silica that is the basis for the quartz family. Growing conditions that initially produced quartz changed, and a later generation of growth deposited the less common hyalite on the specimen.\u003c\/p\u003e\n\u003cp\u003eHyalite displays botryoidal growth (bunches of “grape-like” round crystals) with a glossy high luster like a layer of bubbles. I think it looks like mermaid caviar! \u003cmeta charset=\"utf-8\"\u003eHyalite turns \"radioactive\" green under UV light due to trace elements of uranium. \u003cmeta charset=\"utf-8\"\u003eDon’t worry though, it's not enough to expose you to radiation. Hyalite can appear fluid with formations that look like the splash from a drip frozen in place, or as if the edge has been peeled up away from the quartz like a tutu.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUV reactivity\u003c\/strong\u003e Hyalite is so strongly UV reactive that you can see it in sunlight. Under indoor lighting it is pale yellow to golden in color, but turns visibly greenish yellow when exposed to the UV in sunlight. \u003cstrong\u003e395nm UV \u003c\/strong\u003efluoresces a strong green, with an icy blue undertone. This specimen displays the dual-tone fluorescence especially well! In fact I forgot to take a picture showing the 365 reaction because I was so obsessed with how it looks under 395 light. \u003cstrong\u003e365nm UV\u003c\/strong\u003e fluoresces a strong yellowish-green color, generally visible even in bright lighting. No phosphorescence detected.\u003c\/p\u003e","brand":"Pretty Ugly Things","offers":[{"title":"Default Title","offer_id":44583978565783,"sku":null,"price":195.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0639\/5192\/9495\/files\/IMG_2577.jpg?v=1731540887"},{"product_id":"smoky-quartz-cluster-with-black-tourmaline-and-hyalite","title":"Smoky quartz cluster with black tourmaline and hyalite","description":"\u003cp\u003e\u003cstrong\u003eLocale: \u003c\/strong\u003eErongo Mountain, Namibia\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox dimensions: \u003c\/strong\u003e4.5 x 3.5 x 3\"\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox weight: \u003c\/strong\u003e488g\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cem\u003e** Loose piece on underside\u003c\/em\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e \u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe top of this specimen is a smoky quartz cluster, perched on an aggregate of black tourmaline and irregular shards of smoky quartz, coated in hyalite. \u003cmeta charset=\"utf-8\"\u003eThe largest smoky quartz crystal in this cluster is 3\" with lighter color, good clarity, and a faint phantom. The black tourmaline (schorl) is mostly poorly developed, but there is one small well-formed crystal nestled in the smoky quartz crystal, featuring \u003cmeta charset=\"utf-8\"\u003ethe classic trigonal 'Mercedes' termination characteristic of Erongo material.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eSmoky quartz from the Erongo region is typically a quite dark brown-black color, with \u003cmeta charset=\"utf-8\"\u003elower clarity due to natural inclusions, and a flat surface luster \u003cmeta charset=\"utf-8\"\u003ecaused by etching. It grows sculptural elongated and angular points \u003cmeta charset=\"utf-8\"\u003ewith nice striations.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eSmoky quartz gets its dark coloration from trace elements that tint dark when the quartz is exposed to natural radiation. \u003cmeta charset=\"utf-8\"\u003eDon’t worry, the specimen can't expose you to radiation—even if the hyalite turns \"radioactive\" green under UV light due to trace elements of uranium.\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003eHyalite is a form of opal, which in turn is part of the broader quartz family. Related minerals commonly grow together because they have similar requirements for growth: in this case, the availability of silica that is the basis for the quartz family. Growing conditions that initially produced quartz changed, and a later generation of growth deposited the less common hyalite on the specimen.\u003c\/p\u003e\n\u003cp\u003eHyalite displays botryoidal growth (bunches of “grape-like” round crystals) with a glossy high luster like a layer of bubbles. I think it looks like mermaid caviar! Hyalite can appear fluid with formations that look like the splash from a drip frozen in place, or as if the edge has been peeled up away from the quartz like a tutu. The hyalite on this specimen may be \"hidden\" on the bottom, but it is lush with very \u003cmeta charset=\"utf-8\"\u003eclear large botryoidal hyalite. There are two spheres that are white at the center like snowballs trapped in the hyalite.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUV reactivity\u003c\/strong\u003e Hyalite is so strongly UV reactive that you can see it in sunlight. Under indoor lighting it is pale yellow to golden in color, but turns visibly greenish yellow when exposed to the UV in sunlight. \u003cstrong\u003e395nm UV \u003c\/strong\u003efluoresces a strong green, with an icy blue undertone. Best viewed in darker conditions. \u003cstrong\u003e365nm UV\u003c\/strong\u003e fluoresces a strong yellowish-green color, generally visible even in bright lighting. No phosphorescence detected.\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003eLoose piece: \u003c\/strong\u003eThere is a shard of smoky quartz on the underside that is loose and will move around (you may hear a faint 'tink' sound like porcelain!). It is firmly wedged between crystals and doesn't seem in danger of falling out.\u003c\/p\u003e","brand":"Pretty Ugly Things","offers":[{"title":"Default Title","offer_id":44586105995415,"sku":null,"price":245.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0639\/5192\/9495\/files\/IMG_2628.jpg?v=1725636015"},{"product_id":"black-tourmaline-with-albite-smoky-quartz-and-hyalite","title":"Black tourmaline with albite, smoky quartz, hyalite, and an aquamarine","description":"\u003cp\u003e\u003cstrong\u003eLocale: \u003c\/strong\u003eErongo Mountain, Namibia\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox dimensions: \u003c\/strong\u003e3.25 x 3 x 1.75\"\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox weight: \u003c\/strong\u003e\u003cspan data-sheets-root=\"1\"\u003e417g\u003c\/span\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e \u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eThis large glossy black tourmaline, known as schorl, is accompanied by smaller schorl crystals, smoky quartz, and albite. Some of the smaller schorls have mercedes terminations. It's unclear to me if the main schorl is a single crystal or some product of twinning, but it is a large blocky piece with an offset split through the middle. \u003cmeta charset=\"utf-8\"\u003eErongo schorl typically has very high luster as seen in this piece, though it is somewhat obscured by some thin colorless mineral growth on the surface.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cmeta charset=\"utf-8\"\u003eThis specimen also features a very small faint blue aquamarine beryl with a nice six-sided prism crystal. \u003cmeta charset=\"utf-8\"\u003eThe aquamarine is perched atop irregular opaque white mineral on the specimen, which is albite, a type of feldspar commonly associated with black tourmaline. The albite is typically not well-formed, but an aggregate of small shard-like pieces, with some pieces of smoky quartz mixed in.\u003c\/p\u003e\n\u003cp\u003eColorless hyalite coats parts of the albite. Hyalite is a form of opal, which in turn is part of the broader quartz family. It was deposited on the specimen in a later stage of growth. Hyalite displays botryoidal growth (bunches of “grape-like” round crystals) with a glossy high luster like a layer of bubbles. I think it looks like mermaid caviar! Hyalite can appear fluid with formations that look like the splash from a drip frozen in place, or as if the edge has been peeled up from the surface like a tutu.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUV reactivity\u003c\/strong\u003e Hyalite is so strongly UV reactive that you can see it in sunlight. Under indoor lighting it is pale yellow to golden in color, but turns visibly greenish yellow when exposed to the UV in sunlight. \u003cstrong\u003e395nm UV \u003c\/strong\u003efluoresces a strong green, with an icy blue undertone. Best viewed in darker conditions. \u003cstrong\u003e365nm UV\u003c\/strong\u003e fluoresces a strong yellowish-green color, generally visible even in bright lighting. No phosphorescence detected.\u003c\/p\u003e\n\u003cstyle type=\"text\/css\"\u003e\u003c!--td {border: 1px solid #cccccc;}br {mso-data-placement:same-cell;}--\u003e\u003c\/style\u003e","brand":"Pretty Ugly Things","offers":[{"title":"Default Title","offer_id":44586122477719,"sku":null,"price":185.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0639\/5192\/9495\/files\/IMG_2597.jpg?v=1731540752"},{"product_id":"selenite-crystals-and-siderite-with-pyrite-base","title":"Selenite crystals and siderite with pyrite pseudomorph base","description":"\u003cp\u003e\u003cstrong\u003eLocale: \u003c\/strong\u003ePotosí Mine, Santa Eulalia, Chihuahua, Mexico\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox dimensions: \u003c\/strong\u003e\u003cspan data-sheets-root=\"1\"\u003e4 x 3 x 2.5\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cstyle type=\"text\/css\"\u003e\u003c!--td {border: 1px solid #cccccc;}br {mso-data-placement:same-cell;}--\u003e\u003c\/style\u003e\n\u003cp\u003e\u003cstrong\u003eApprox weight:\u003c\/strong\u003e 490g (1 lb)\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThis specimen is a sampler mix of minerals \u003cmeta charset=\"utf-8\"\u003efrom the \u003cmeta charset=\"utf-8\"\u003ePotosí Mine, with selenite and light-to-orange-yellow siderite on a \u003cmeta charset=\"utf-8\"\u003eheavy base composed of several minerals. Selenite is the crystal-clear form of gypsum, though the two terms are often used interchangeably. Selenite is one of the more common minerals to come from Mexico, which is known for the nearby Naica locale. This selenite shows typical twinned and fishtail growth habits.\u003c\/p\u003e\n\u003cp\u003eThe heavy base is \u003cmeta charset=\"utf-8\"\u003epyrite, \u003cmeta charset=\"utf-8\"\u003epyrrhotite, and galena. The large hexagonal formation is characteristic of \u003cmeta charset=\"utf-8\"\u003epyrrhotite, a mineral that looks quite similar to pyrite. \u003cmeta charset=\"utf-8\"\u003ePyrite from the Potosí Mine is \u003ca rel=\"noopener\" href=\"https:\/\/www.mindat.org\/photo-710054.html\" data-mce-href=\"https:\/\/www.mindat.org\/photo-710054.html\" target=\"_blank\"\u003eknown to pseudomorph after pyrrhotite\u003c\/a\u003e in this hexagonal formation, which appears to have occurred with this specimen. \u003cmeta charset=\"utf-8\"\u003ePyrrhotite is supposed to have some slight magnetism, and this piece—like pyrite—does not seem too. Shining masses of pyrite grow on its surface and have rosette-like growth.\u003c\/p\u003e\n\u003cp\u003eNear the 'top' back there is a chunk of dark gray mineral with cubic surface patterning I suspect to be galena because it commonly accompanies pyrite, \u003cmeta charset=\"utf-8\"\u003epyrrhotite, and siderite from this locale. The galena has formed a small flat square tabular crystal coated in overgrowth, visible on the front of the specimen.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUV reactivity \u003c\/strong\u003eUnder 365nm UV light, the selenite fluoresces an icy blue color in patchy areas of the back.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e** Brittle warning:\u003c\/strong\u003e Selenite is soft and can easily break, flake, or bend. There are several crystals with curvature which I believe is damage that occurred to the specimen, not natural bending. Handle this specimen by the heavy base to avoid damage.\u003c\/p\u003e","brand":"Pretty Ugly Things","offers":[{"title":"Default Title","offer_id":44599587373207,"sku":"","price":50.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0639\/5192\/9495\/files\/IMG_2301.jpg?v=1725995883"},{"product_id":"pyrite-with-siderite","title":"Siderite on pyrite pseudomorph","description":"\u003cp\u003e\u003cstrong\u003eLocale: \u003c\/strong\u003e10 Silicate ore body, Potosí Mine, Santa Eulalia, Chihuahua, Mexico\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox dimensions: \u003c\/strong\u003e\u003cspan data-sheets-root=\"1\"\u003e4 x 2.25 x 2.25\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cstyle type=\"text\/css\"\u003e\u003c!--td {border: 1px solid #cccccc;}br {mso-data-placement:same-cell;}--\u003e\u003c\/style\u003e\n\u003cp\u003e\u003cstrong\u003eApprox weight:\u003c\/strong\u003e 608g (1 1\/3 lb)\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThis specimen from the \u003cmeta charset=\"utf-8\"\u003ePotosí Mine has orange-yellow siderite on a \u003cmeta charset=\"utf-8\"\u003eheavy base. The siderite has formed blade-like growth criss-crossing the surface, with small pyrite crystals sprinkled throughout.\u003c\/p\u003e\n\u003cp\u003eThe heavy base is composed of tapered hexagonal barrel crystals. The large hexagonal formation is characteristic of \u003cmeta charset=\"utf-8\"\u003epyrrhotite, a mineral that looks quite similar to pyrite. \u003cmeta charset=\"utf-8\"\u003ePyrite from the Potosí Mine is \u003ca rel=\"noopener\" href=\"https:\/\/www.mindat.org\/photo-710054.html\" data-mce-href=\"https:\/\/www.mindat.org\/photo-710054.html\" target=\"_blank\"\u003eknown to pseudomorph after pyrrhotite\u003c\/a\u003e in this hexagonal formation, which appears to have occurred with this specimen. Pyrrhotite is supposed to have some slight magnetism, and this piece—like pyrite—does not seem to.\u003c\/p\u003e","brand":"Pretty Ugly Things","offers":[{"title":"Default Title","offer_id":44599613849751,"sku":null,"price":40.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0639\/5192\/9495\/files\/IMG_2313_23fcdf4c-3931-4af7-a9f1-727ef46b960c.jpg?v=1725998810"},{"product_id":"microcline-with-smoky-quartz-crystals","title":"Microcline with smoky quartz crystals","description":"\u003cp\u003e\u003cstrong\u003eLocale: \u003c\/strong\u003eTatatila, Veracruz, Mexico\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox dimensions: \u003c\/strong\u003e3.5 x 2.5 x 2\u003cspan data-sheets-root=\"1\"\u003e\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox weight:\u003c\/strong\u003e 515g (1.15 lb)\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eMicrocline is a type of feldspar forming sculptural blocky, tabular crystals which can display parallel growth and twinning. This piece has large, well-formed crystals. It is opaque and near-white with a pearlescent sheen. \u003c\/p\u003e\n\u003cp\u003eSmoky quartz commonly accompanies this material, providing a dramatic contrast. The specimen is dotted with small smoky crystals, the largest point measuring about 1.5cm.\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003eUV reactivity \u003c\/strong\u003eUnder 365nm UV light, the m\u003cmeta charset=\"utf-8\"\u003e\u003cspan data-sheets-root=\"1\"\u003eicrocline shows milky cream to red color; blue speckles throughout.\u003c\/span\u003e\u003c\/p\u003e","brand":"Pretty Ugly Things","offers":[{"title":"Default Title","offer_id":44599721230487,"sku":null,"price":38.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0639\/5192\/9495\/files\/IMG_1587.jpg?v=1731541512"},{"product_id":"microcline-with-siderite","title":"Microcline with siderite","description":"\u003cp\u003e\u003cstrong\u003eLocale: \u003c\/strong\u003eTatatila, Veracruz, Mexico\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox dimensions: \u003c\/strong\u003e4 x 3.25 x 2\u003cspan data-sheets-root=\"1\"\u003e\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cstyle type=\"text\/css\"\u003e\u003c!--td {border: 1px solid #cccccc;}br {mso-data-placement:same-cell;}--\u003e\u003c\/style\u003e\n\u003cp\u003e\u003cstrong\u003eApprox weight:\u003c\/strong\u003e 705g (1.5 lb)\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eMicrocline is a type of feldspar that forms sculptural blocky crystals. This piece has large, well-formed crystals displaying \u003cmeta charset=\"utf-8\"\u003eparallel growth and twinning, and a great composition for display. \u003cmeta charset=\"utf-8\"\u003eIt is opaque and near-white with a pearlescent sheen. Fine brownish siderite has been deposited on one face of the crystals.\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003eUV reactivity \u003c\/strong\u003eUnder 365nm UV light, the m\u003cmeta charset=\"utf-8\"\u003e\u003cspan data-sheets-root=\"1\"\u003eicrocline shows milky cream to red color with blue speckles throughout. An unknown mineral deposited along crystal junctions fluoresces bright green.\u003c\/span\u003e\u003c\/p\u003e\n\u003cstyle type=\"text\/css\"\u003e\u003c!--td {border: 1px solid #cccccc;}br {mso-data-placement:same-cell;}--\u003e\u003c\/style\u003e","brand":"Pretty Ugly Things","offers":[{"title":"Default Title","offer_id":44599765205143,"sku":null,"price":40.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0639\/5192\/9495\/files\/IMG_1588.jpg?v=1731541450"},{"product_id":"quartz-and-calcite-cluster","title":"Quartz and calcite cluster","description":"\u003cp\u003e\u003cstrong\u003eLocale: \u003c\/strong\u003ePotosí Mine, Santa Eulalia, Chihuahua, Mexico\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox dimensions: \u003c\/strong\u003e5 x 3 x 1.5\"\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox weight:\u003c\/strong\u003e 420g\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThis quartz and calcite specimen from the Potosí Mine is one of my favorites I've seen from this locale. There are two large calcite rhombs and a spherical formation covered in quartz tinted brown-yellow with iron. On top are pellet-like calcites that look like brown rice. Where better-formed, they are small dogtooth calcite points.\u003c\/p\u003e\n\u003cp\u003eQuartz points sprout out around this formation. The larger crystals display milky white phantoms inside colorless quartz. They have alligator growth forms, commonly known as \"elestial\" quartz, beautifully emphasized by yellow iron staining and interspersed with clusters of calcite teeth. Black iron inclusions pepper the quartz, appearing as rings, strings, or spots under magnification (you can see it if you zoom in on close shots!).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUV reactivity \u003c\/strong\u003eUnder 365nm UV light, \u003cspan data-sheets-root=\"1\"\u003ethe bottom of the specimen clearly shows the rhombohedral growth of the calcite structures on the front side. It has\u003c\/span\u003e\u003cspan data-sheets-root=\"1\"\u003e strong orange-red fluorescence with brief phosphorescence. The smaller calcite rice grains fluoresce a lighter orange-red.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e** Brittle warning:\u003c\/strong\u003e Be careful putting pressure on crystals along the edge as they may dislodge from the specimen. \u003c\/p\u003e","brand":"Pretty Ugly Things","offers":[{"title":"Default Title","offer_id":44599781130391,"sku":null,"price":45.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0639\/5192\/9495\/files\/IMG_1582.jpg?v=1731447289"},{"product_id":"smoky-quartz-pair-with-hyalite-1","title":"Excellent smoky quartz pair with hyalite","description":"\u003cp\u003e\u003cstrong\u003eLocale: \u003c\/strong\u003eErongo Mountain, Namibia\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox dimensions: \u003c\/strong\u003e3.25 x 2.25 x 2\"\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox weight: \u003c\/strong\u003e189\u003cspan data-sheets-root=\"1\"\u003eg\u003c\/span\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-sheets-root=\"1\"\u003e\u003cmeta charset=\"utf-8\"\u003e \u003cem\u003e** Loose piece on underside!\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e \u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eThis is one of my favorite specimens of Erongo hyalite because of its blocky smoky quartz crystals with exquisite horizontal striations. This thing really \u003cem\u003eshows off\u003c\/em\u003e in a light box (please someone professional at mineral photography buy this).\u003c\/p\u003e\n\u003cp\u003eSmoky quartz from the Erongo region is typically a quite dark brown-black color, with lower clarity due to natural inclusions, and a flat surface luster caused by etching. It grows sculptural blocky or elongated crystals with nice striations. This piece has two main crystals with deep color, excellent clarity, and some high-luster faces providing windows into the interior. The crystals are perched atop a base of several partial points and shard-like broken crystal pieces.\u003c\/p\u003e\n\u003cp\u003eSmoky quartz gets its dark coloration from trace elements that tint dark when the quartz is exposed to natural radiation. \u003cmeta charset=\"utf-8\"\u003eDon’t worry, the specimen can't expose you to radiation—even if the hyalite turns \"radioactive\" green under UV light due to trace elements of uranium.\u003c\/p\u003e\n\u003cp\u003eHyalite is a form of opal, which in turn is part of the broader quartz family. Related minerals commonly grow together because they have similar requirements for growth: in this case, the availability of silica that is the basis for the quartz family. Growing conditions that initially produced quartz changed, and a later generation of growth deposited the less common hyalite on the underside of the specimen.\u003c\/p\u003e\n\u003cp\u003eHyalite displays botryoidal growth (bunches of “grape-like” round crystals) with a glossy high luster like a layer of bubbles. I think it looks like mermaid caviar! Hyalite can appear fluid with formations that look like the splash from a drip frozen in place, or as if the edge has been peeled up away from the quartz like a tutu. This specimen has an interesting lattice-like formation of small colorless needles that have the same fluorescence as the hyalite—green in the core with icy blue needles poking out.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUV reactivity\u003c\/strong\u003e Hyalite is so strongly UV reactive that you can see it in sunlight. Under indoor lighting it is pale yellow to golden in color, but turns visibly greenish yellow when exposed to the UV in sunlight. \u003cstrong\u003e395nm UV \u003c\/strong\u003efluoresces a strong green, with an icy blue undertone. This specimen displays the dual-tone fluorescence especially well! \u003cstrong\u003e365nm UV\u003c\/strong\u003e fluoresces a strong yellowish-green color, generally visible even in bright lighting. No phosphorescence detected.\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003eLoose piece: \u003c\/strong\u003eThere is a shard of smoky quartz on the underside that is loose and will move around (you may hear a faint 'tink' sound like porcelain!). It is firmly wedged between crystals and doesn't seem in danger of falling out.\u003c\/p\u003e","brand":"Pretty Ugly Things","offers":[{"title":"Default Title","offer_id":44704258228375,"sku":null,"price":145.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0639\/5192\/9495\/files\/IMG_2932_8082b158-9fa2-4993-ae99-1bb385f8d836.jpg?v=1771793323"},{"product_id":"excellent-hyalite-on-matrix-mermaids-caviar","title":"Excellent hyalite on matrix, \"Mermaid's Caviar\"","description":"\u003cp\u003e\u003cstrong\u003eLocale: \u003c\/strong\u003eErongo Mountain, Namibia\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox dimensions: \u003c\/strong\u003e4.5 x 3.25 x 2\"\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox weight: \u003c\/strong\u003e383\u003cspan data-sheets-root=\"1\"\u003eg\u003c\/span\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e \u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eThis is one of my favorite specimens of Erongo hyalite, absolutely thick with glossy botryoidal growth. You're going to need to buy it before I decide to keep it.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eThe piece is a rough aggregate of minerals appearing to contain albite, schorl (black tourmaline), and smoky quartz. The front of the matrix is nearly\u003cspan\u003e entirely covered by luscious large spheres of\u003c\/span\u003e\u003cspan\u003e hyalite, with one large schorl crystal partially exposed.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eHyalite is a form of opal, which in turn is part of the broader quartz family. \u003cmeta charset=\"utf-8\"\u003eHyalite turns \"radioactive\" green under UV light due to trace elements of uranium. \u003cmeta charset=\"utf-8\"\u003eDon’t worry though, it's not enough to expose you to radiation.\u003c\/p\u003e\n\u003cp\u003eHyalite displays botryoidal growth (bunches of “grape-like” round crystals) with a glossy high luster like a layer of bubbles. \u003cmeta charset=\"utf-8\"\u003eHyalite can appear fluid with formations that look like the splash from a drip frozen in place, or as if the edge has been peeled up away from the quartz like a tutu. I think it looks like mermaid caviar, and this one is the mother lode!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUV reactivity\u003c\/strong\u003e Hyalite is so strongly UV reactive that you can see it in sunlight. Under indoor lighting it is pale yellow to golden in color, but turns visibly greenish yellow when exposed to the UV in sunlight. \u003cstrong\u003e395nm UV \u003c\/strong\u003efluoresces a strong green, with a light blue undertone especially in thinner areas of hyalite (but it is mostly thick on this piece!). \u003cstrong\u003e365nm UV\u003c\/strong\u003e fluoresces a strong yellowish-green color, generally visible even in bright lighting. No phosphorescence detected.\u003c\/p\u003e\n\u003cstyle type=\"text\/css\"\u003e\u003c!--td {border: 1px solid #cccccc;}br {mso-data-placement:same-cell;}--\u003e\u003c\/style\u003e","brand":"Pretty Ugly Things","offers":[{"title":"Default Title","offer_id":44704272384151,"sku":null,"price":265.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0639\/5192\/9495\/files\/IMG_2725.jpg?v=1731540821"},{"product_id":"black-tourmaline-with-small-hyalite","title":"Black tourmaline with excellent form and small hyalite","description":"\u003cp\u003e\u003cstrong\u003eLocale: \u003c\/strong\u003eErongo Mountain, Namibia\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox dimensions: \u003c\/strong\u003e2.75 x 2.5 x 2\"\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox weight: \u003c\/strong\u003e375\u003cspan data-sheets-root=\"1\"\u003eg\u003c\/span\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e \u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eThis large glossy black tourmaline, known as schorl, features the Mercedes termination characteristic of the Erongo region. Erongo schorl typically has very high luster as seen in this specimen. The sides of the piece have beautiful chunky vertical striations, and the faces of the point have faint angular zig-zag  patterns of the crystal growth form visible.\u003c\/p\u003e\n\u003cp\u003eThere is a small amount of white hyalite near the base of the specimen on one side. Hyalite is a highly UV reactive form of opal, which in turn is part of the broader quartz family.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUV reactivity\u003c\/strong\u003e The small amount of hyalite will react a strong yellow-green color under 395nm UV or 365nm UV light. No phosphorescence detected.\u003c\/p\u003e\n\u003cstyle type=\"text\/css\"\u003e\u003c!--td {border: 1px solid #cccccc;}br {mso-data-placement:same-cell;}--\u003e\u003c\/style\u003e","brand":"Pretty Ugly Things","offers":[{"title":"Default Title","offer_id":44704329564311,"sku":null,"price":165.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0639\/5192\/9495\/files\/IMG_2664.jpg?v=1731540670"},{"product_id":"black-tourmaline","title":"Black tourmaline","description":"\u003cp\u003e\u003cstrong\u003eLocale: \u003c\/strong\u003eErongo Mountain, Namibia\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox dimensions: \u003c\/strong\u003e3 x 2.5 x 2.5\"\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox weight: \u003c\/strong\u003e287\u003cspan data-sheets-root=\"1\"\u003eg\u003c\/span\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-sheets-root=\"1\"\u003e\u003cmeta charset=\"utf-8\"\u003e \u003cem\u003e** Loose piece on base\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e \u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eThis statuesque piece of black tourmaline, known as schorl, has the mercedes termination and glossy high luster characteristic of the Erongo region. The piece is effectively three intergrown crystals in a stepped formation, with partial crystals attached at one end. \u003cmeta charset=\"utf-8\"\u003eThe sides are beautifully striated on the partial crystals, with more irregular stepped ends on the striations of the main crystals. The crystal tops have intricate growth patterns across the surface, partially obscured by fine bits of matrix.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eThere is a small piece of smoky quartz on one side of the piece. On the base, you can see inverted striated patterns, geometric impressions left behind by other crystals.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003eLoose piece: \u003c\/strong\u003eThere is a slightly loose small schorl crystal in the base of the piece, near the slanted crystal at the back. It may dislodge with handling.\u003c\/p\u003e\n\u003cstyle type=\"text\/css\"\u003e\u003c!--td {border: 1px solid #cccccc;}br {mso-data-placement:same-cell;}--\u003e\u003c\/style\u003e","brand":"Pretty Ugly Things","offers":[{"title":"Default Title","offer_id":44704349421719,"sku":null,"price":175.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0639\/5192\/9495\/files\/IMG_2708.jpg?v=1731540602"},{"product_id":"black-tourmaline-and-smoky-quartz-on-albite-matrix-with-hyalite-1","title":"Black tourmaline and smoky quartz on albite matrix with hyalite","description":"\u003cp\u003e\u003cstrong\u003eLocale: \u003c\/strong\u003eErongo Mountain, Namibia\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox dimensions: \u003c\/strong\u003e4.5 x 4 x 1.5\"\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox weight: \u003c\/strong\u003e728\u003cspan data-sheets-root=\"1\"\u003eg (1.6 lbs)\u003c\/span\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e \u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eThis large specimen is one of my favorites of the Erongo black tourmaline, known as schorl. The piece is a rough aggregate of minerals appearing to contain albite, schorl, and smoky quartz. The front is nearly entirely covered with dozens of blocky small schorl crystals, some displaying the Mercedes termination characteristic of the Erongo region. Erongo schorl also typically has very high luster, but there is a fine almost spit-like mineral coating that slightly obscures the reflections on the crystal. \u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eThere are several clusters of smoky quartz on the the specimen, light colored with a frosted surface. \u003cmeta charset=\"utf-8\"\u003eSmoky quartz gets its dark coloration from trace elements that tint dark when the quartz is exposed to natural radiation. Don’t worry, the specimen can't expose you to radiation—even if the hyalite turns \"radioactive\" green under UV light due to trace elements of uranium.\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eHyalite is a form of opal, which in turn is part of the broader quartz family. Hyalite is a form of opal, which in turn is part of the broader quartz family. Hyalite displays botryoidal growth (bunches of “grape-like” round crystals) with a glossy high luster like a layer of bubbles.\u003c\/p\u003e\n\u003cp\u003eHyalite can appear fluid with formations that look like the splash from a drip frozen in place, or as if the edge has been peeled up away from the quartz like a tutu. \u003cmeta charset=\"utf-8\"\u003eThe thick hyalite at the top of the specimen is a great example of this, with an especially three-dimensional splash-like formation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUV reactivity\u003c\/strong\u003e \u003cmeta charset=\"utf-8\"\u003eHyalite is so strongly UV reactive that you can see it in sunlight. Under indoor lighting it is pale yellow to golden in color, but turns visibly greenish yellow when exposed to the UV in sunlight. \u003cstrong\u003e395nm UV \u003c\/strong\u003efluoresces a strong green, with an icy blue undertone. Best viewed in darker conditions. \u003cstrong\u003e365nm UV\u003c\/strong\u003e fluoresces a strong yellowish-green color, generally visible even in bright lighting. No phosphorescence detected.\u003c\/p\u003e","brand":"Pretty Ugly Things","offers":[{"title":"Default Title","offer_id":44704373538967,"sku":null,"price":240.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0639\/5192\/9495\/files\/IMG_2677.jpg?v=1731540575"},{"product_id":"large-black-tourmaline-with-hyalite","title":"Large black tourmaline with hyalite","description":"\u003cp\u003e\u003cstrong\u003eLocale: \u003c\/strong\u003eErongo Mountain, Namibia\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox dimensions: \u003c\/strong\u003e3.25 x 2.5 x 2.25\"\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox weight: \u003c\/strong\u003e645\u003cspan data-sheets-root=\"1\"\u003eg\u003c\/span\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e \u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eThis large glossy black tourmaline, known as schorl, has the Mercedes termination characteristic of the Erongo region \u003cmeta charset=\"utf-8\"\u003ewith intricate growth patterns across the faces of the tip. The sides are beautifully striated, with fine vertical lines and a chunkier accordion zig-zag to the sides of the crystal. Erongo schorl typically has very high luster as seen in this specimen.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eOne side of the schorl is less well-formed, with a coating of hyalite over it . There are two neat inverted hexagonal shapes in one section, remnants of quartz that once grew with the piece. Instead they are now filled with hyalite.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cmeta charset=\"utf-8\"\u003eHyalite is a form of opal, which in turn is part of the broader quartz family. Hyalite displays botryoidal growth (bunches of “grape-like” round crystals) with a glossy high luster like a layer of bubbles. The hyalite on this specimen has relatively small spheres, and appears off-white in contrast to the black tourmaline.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUV reactivity\u003c\/strong\u003e The small amount of hyalite will react a strong yellow-green color under 395nm UV or 365nm UV light. 395 can sometimes give hyalite an icy blue overtone, but I did not detect that with this specimen. No phosphorescence detected.\u003c\/p\u003e\n\u003cstyle type=\"text\/css\"\u003e\u003c!--td {border: 1px solid #cccccc;}br {mso-data-placement:same-cell;}--\u003e\u003c\/style\u003e","brand":"Pretty Ugly Things","offers":[{"title":"Default Title","offer_id":44704382845079,"sku":null,"price":200.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0639\/5192\/9495\/files\/IMG_2748.jpg?v=1731540512"},{"product_id":"smoky-quartz-pair-with-hyalite-needle-formation","title":"Smoky quartz pair with hyalite, needle formation","description":"\u003cp\u003e\u003cstrong\u003eLocale: \u003c\/strong\u003eErongo Mountain, Erongo Region, Namibia\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox dimensions: \u003c\/strong\u003e4 x 1.75 x 1.75\"\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox weight: \u003cmeta charset=\"utf-8\"\u003e\u003c\/strong\u003e\u003cspan data-sheets-root=\"1\"\u003e202g\u003c\/span\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e \u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eSmoky quartz from the Erongo region is typically a quite dark brown-black color, with \u003cmeta charset=\"utf-8\"\u003elower clarity due to natural inclusions, and a flat surface luster \u003cmeta charset=\"utf-8\"\u003ecaused by etching. It can grow blocky points like the larger crystal in this pair. The two points have nice angular structure on one side and a thick layer of hyalite on the other. Paired with hyalite, the smoky quartz takes on a witchy appearance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eSmoky quartz gets its dark coloration from trace elements that tint dark when the quartz is exposed to natural radiation. \u003cmeta charset=\"utf-8\"\u003eDon’t worry, the specimen can't expose you to radiation—even if the hyalite turns \"radioactive\" green under UV light due to trace elements of uranium.\u003c\/p\u003e\n\u003cp\u003eHyalite is a form of opal, which in turn is part of the broader quartz family. Related minerals commonly grow together because they have similar requirements for growth: in this case, the availability of silica that is the basis for the quartz family. Growing conditions that initially produced quartz changed, and a later generation of growth deposited the less common hyalite on the specimen.\u003c\/p\u003e\n\u003cp\u003eHyalite displays botryoidal growth (bunches of “grape-like” round crystals) with a glossy high luster like a layer of bubbles. I think it looks like mermaid caviar! Hyalite can appear fluid with formations that look like the splash from a drip frozen in place, or as if the edge has been peeled up away from the quartz like a tutu, like seen on the larger point. In the nook between the two points, there is an interesting formation of small needles made of round forms growing from the botryoidal hyalite, which may be hyalite. On other specimens it takes on a purple amethyst hue on the ends, possibly another shift in growing conditions causing a transition from hyalite to a different type of quartz.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUV reactivity\u003c\/strong\u003e Hyalite is so strongly UV reactive that you can see it in sunlight. Under indoor lighting it is pale yellow to golden in color, but turns visibly greenish yellow when exposed to the UV in sunlight. \u003cstrong\u003e395nm UV \u003c\/strong\u003efluoresces a strong green, with an icy blue undertone. Best viewed in darker conditions. \u003cstrong\u003e365nm UV\u003c\/strong\u003e fluoresces a strong yellowish-green color, generally visible even in bright lighting. No phosphorescence detected.\u003c\/p\u003e\n\u003cstyle type=\"text\/css\"\u003e\u003c!--td {border: 1px solid #cccccc;}br {mso-data-placement:same-cell;}--\u003e\u003c\/style\u003e","brand":"Pretty Ugly Things","offers":[{"title":"Default Title","offer_id":44704449134743,"sku":null,"price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0639\/5192\/9495\/files\/IMG_6068.jpg?v=1729110271"},{"product_id":"epidote-with-well-formed-prehnite-sphere-1","title":"Epidote with well-formed prehnite sphere","description":"\u003cstyle type=\"text\/css\"\u003e\u003c!--td {border: 1px solid #cccccc;}br {mso-data-placement:same-cell;}--\u003e\u003c\/style\u003e\n\u003cp\u003e\u003cstrong\u003eLocale:\u003c\/strong\u003e \u003cmeta charset=\"utf-8\"\u003e\u003cspan data-sheets-root=\"1\"\u003eImilchil, Midelt Province, Drâa-Tafilalet Region, Morocco\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox dimensions:\u003c\/strong\u003e 2.5 x 1.5 x 1.25\"\u003c\/p\u003e\n\u003cstyle type=\"text\/css\"\u003e\u003c!--td {border: 1px solid #cccccc;}br {mso-data-placement:same-cell;}--\u003e\u003c\/style\u003e\n\u003cp\u003e\u003cstrong\u003eApprox weight: \u003c\/strong\u003e115g\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eAfter some sleuthing on Mindat I was intrigued to discover the spherical formation on this specimen is prehnite. I actually didn't find one matching this specimen anywhere; all examples were translucent and not opaque. I suspect it could be a feldspar pseudomorph. Prehnite typically does not fluoresce—but this one does.\u003c\/p\u003e\n\u003cp\u003ePrehnite and epidote commonly grow together because they have similar chemical requirements (both need calcium and aluminium, and often grow in hydrothermal environments). This is far from the version that comes to mind for most people. \u003cmeta charset=\"utf-8\"\u003ePrehnite is most frequently found as a translucent light green with a botryoidal habit, pierced by or growing alongside dark green crystals of epidote (\u003ca href=\"https:\/\/prettyuglythingsaz.com\/products\/prehnite-with-epidote-tower\" target=\"_blank\" title=\"Prehnite with epidote tower\" rel=\"noopener\"\u003elike this\u003c\/a\u003e). Instead this prehnite is an opaque sand-colored \u003cmeta charset=\"utf-8\"\u003esphere formed of radiating crystals terminating in thin, rectangular ends. The sphere is fairly complete with one cleanly broken side revealing the radial growth pattern.\u003c\/p\u003e\n\u003cp\u003eEpidote grows long slender prismatic crystals with saturated olive green color, though it can be more yellow, brown, or even so saturated it appears black. Radial growth forms are typical of the Imilchil region in Morocco. It’s common to find fans and bow-ties of epidote mixed in with individual crystals. This piece has several good bow-ties around the sphere. Epidote has a good luster which is apparent with the larger crystals on the specimen.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUV reactivity:\u003c\/strong\u003e the epidote is non-reactive but the prehnite sphere glows a light golden yellow in 365nm UV light.\u003c\/p\u003e","brand":"Pretty Ugly Things","offers":[{"title":"Default Title","offer_id":44714430660759,"sku":null,"price":28.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0639\/5192\/9495\/files\/IMG_0879_5c60aaaa-3164-42b1-b075-d98e9903a9d2.jpg?v=1730588827"},{"product_id":"epidote-with-good-bow-tie-circus-animal-cookie","title":"Epidote with good bow-tie, \"The Circus Animal Cookie\"","description":"\u003cstyle type=\"text\/css\"\u003e\u003c!--td {border: 1px solid #cccccc;}br {mso-data-placement:same-cell;}--\u003e\u003c\/style\u003e\n\u003cp\u003e\u003cstrong\u003eLocale:\u003c\/strong\u003e \u003cmeta charset=\"utf-8\"\u003e\u003cspan data-sheets-root=\"1\"\u003eImilchil, Midelt Province, Morocco\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox dimensions:\u003c\/strong\u003e 3.25 x 1.75 x .75\"\u003c\/p\u003e\n\u003cstyle type=\"text\/css\"\u003e\u003c!--td {border: 1px solid #cccccc;}br {mso-data-placement:same-cell;}--\u003e\u003c\/style\u003e\n\u003cp\u003e\u003cstrong\u003eApprox weight: \u003c\/strong\u003e114g\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eI call this one The Circus Animal Cookie because it's flat with rounded edges vaguely resembling a moose with epidote antlers? No wait I think that one's supposed to be a hippo.\u003c\/p\u003e\n\u003cp\u003eEpidote grows long slender prismatic crystals with \u003cmeta charset=\"utf-8\"\u003esaturated olive green color, though it can be more yellow, brown, or even so saturated it appears black. \u003cmeta charset=\"utf-8\"\u003eThe matrix the crystals are attached to is grainy with green patches in gray rock, the green coloration also caused by epidote.\u003c\/p\u003e\n\u003cp\u003eRadial \u003cmeta charset=\"utf-8\"\u003egrowth forms are typical of the Imilchil region in Morocco. It’s common to find fans and bow-ties of epidote mixed in with individual crystals. This piece has a ridge of epidote crystals across the top with a good bow-tie. Epidote has a good luster which is apparent with the more well-formed crystals on the specimen.\u003c\/p\u003e\n\u003cp\u003eThere are some small pieces of an irregular colorless mineral, which is colorless quartz. and an off-cream colored one. One end of the epidote is covered with an opaque cream-colored mineral I suspect is orthoclase feldspar, which is also found at this locale.\u003c\/p\u003e","brand":"Pretty Ugly Things","offers":[{"title":"Default Title","offer_id":44714433183895,"sku":null,"price":22.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0639\/5192\/9495\/files\/IMG_0924_79cd469b-54ba-43ea-b620-e6a93f1815c3.jpg?v=1730503550"},{"product_id":"epidote-with-excellent-sprays-and-bow-ties","title":"Epidote with excellent sprays and bow ties","description":"\u003cstyle type=\"text\/css\"\u003e\u003c!--td {border: 1px solid #cccccc;}br {mso-data-placement:same-cell;}--\u003e\u003c\/style\u003e\n\u003cp\u003e\u003cstrong\u003eLocale:\u003c\/strong\u003e \u003cmeta charset=\"utf-8\"\u003e\u003cspan data-sheets-root=\"1\"\u003eImilchil, Midelt Province, Morocco\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox dimensions:\u003c\/strong\u003e 2.25 x 1.25 x .75\"\u003c\/p\u003e\n\u003cstyle type=\"text\/css\"\u003e\u003c!--td {border: 1px solid #cccccc;}br {mso-data-placement:same-cell;}--\u003e\u003c\/style\u003e\n\u003cp\u003e\u003cstrong\u003eApprox weight: \u003c\/strong\u003e72g\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eEpidote grows long slender prismatic crystals with \u003cmeta charset=\"utf-8\"\u003esaturated olive green color, though it can be more yellow, brown, or even so saturated it appears black. This specimen has multiple colors, with deep olive green and lighter lime-olive crystals. If you look closely the gray-appearing surface is covered with criss-crossing dark green crystals.\u003c\/p\u003e\n\u003cp\u003eRadial \u003cmeta charset=\"utf-8\"\u003egrowth forms are typical of the Imilchil region in Morocco. It’s common to find fans and bow-ties of epidote mixed in with individual crystals. This piece displays both well. One side is covered with a forest of upright individual crystals, and the other side has excellent spherical formations. Epidote has a good luster which is apparent with the larger crystals on the specimen.\u003c\/p\u003e","brand":"Pretty Ugly Things","offers":[{"title":"Default Title","offer_id":44716211306647,"sku":null,"price":22.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0639\/5192\/9495\/files\/IMG_3227.jpg?v=1730500582"},{"product_id":"epidote-with-quartz","title":"Epidote with quartz","description":"\u003cstyle type=\"text\/css\"\u003e\u003c!--td {border: 1px solid #cccccc;}br {mso-data-placement:same-cell;}--\u003e\u003c\/style\u003e\n\u003cp\u003e\u003cstrong\u003eLocale:\u003c\/strong\u003e \u003cmeta charset=\"utf-8\"\u003e\u003cspan data-sheets-root=\"1\"\u003eImilchil, Midelt Province, Drâa-Tafilalet Region, Morocco\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox dimensions:\u003c\/strong\u003e 2 x 1.5 x 1\"\u003c\/p\u003e\n\u003cstyle type=\"text\/css\"\u003e\u003c!--td {border: 1px solid #cccccc;}br {mso-data-placement:same-cell;}--\u003e\u003c\/style\u003e\n\u003cp\u003e\u003cstrong\u003eApprox weight: \u003c\/strong\u003e88g\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eEpidote grows long slender prismatic crystals with \u003cmeta charset=\"utf-8\"\u003esaturated olive green color, though it can be more yellow, brown, or even so saturated it appears black. This specimen has multiple colors, mainly a lighter olive green with a yellow tint but with small patch where the growth turns to thin black crystals. \u003cmeta charset=\"utf-8\"\u003eThe crystals are attached to a matrix of light-colored grainy rock, with green coloration in some areas also caused by epidote.\u003c\/p\u003e\n\u003cp\u003eRadial \u003cmeta charset=\"utf-8\"\u003egrowth forms are typical of the Imilchil region in Morocco. It’s common to find fans and bow-ties of epidote mixed in with individual crystals. This specimen has several partial spheres. Some of the radial growth appears more like stacked thin parallel faces, the tops of crystals that aligned in parallel fans.\u003c\/p\u003e\n\u003cp\u003eThe piece is a bit odd-shaped—I'm not honestly sure the best direction to display it because several sides are interesting!\u003c\/p\u003e","brand":"Pretty Ugly Things","offers":[{"title":"Default Title","offer_id":44716292964503,"sku":null,"price":24.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0639\/5192\/9495\/files\/IMG_3210_b981c0d0-5f6b-4c2c-9807-9ae75d562429.jpg?v=1730510410"},{"product_id":"beta-quartz-10ct-sets","title":"Beta quartz, 10ct sets","description":"\u003cp\u003e\u003cstrong\u003eLocale: \u003c\/strong\u003eIndonesia\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSet count: \u003c\/strong\u003eten miscellaneous crystals\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSet total weight:\u003c\/strong\u003e 16–18g\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLargest crystal \u003c\/strong\u003ein each set measures A 2.0cm; B 1.9cm; C 1.6cm; D 1.9cm; E 1.8cm; F 1.8cm; G 1.8cm; H 1.8cm; I 2.2cm; J 1.9cm; K 2.1cm; L 1.8cm; M 1.9cm; N 1.8cm; O 2.2cm. \u003cem\u003eThe “surprise me!” option will be comparable to these sets.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eBeta quartz (β-quartz), also sometimes called “high quartz,” is a paramorph: a pseudomorph of the same chemical composition but different crystal structure. Standard quartz (α-quartz) is transformed into β-quartz under high temperatures, which is why the crystals are most commonly found in volcanic rock environments. The β-quartz is stable above 573°C\/1063°F and then reverts to α-quartz when it cools. The final product is considered a quartz paramorph after beta quartz. \u003c\/p\u003e\n\u003cp\u003eThese six-sided bipyramidal crystals from Indonesia display the typical beta quartz crystal habit. The surface texture is rough on a lot of these and all sets include crystals that are not whole (it’s simply too common not to!). Many crystals have interesting indented rings on their surface, which may be from crystals that dissolved away; others have indented spots or irregular patterns caused by etching. Some beta quartz crystals have neat split growth, capped points, or additional faces (learn more about quartz growth forms).\u003c\/p\u003e\n\u003cp\u003eThese beta quartz crystals are in their natural state. Some collectors and dealers will clean them with acids to remove the brown coloration. Cleaned Beta quartz will be close to white but the material typically doesn’t gain much translucency or glitter and can look like a sugar cube. Personally I prefer the warm tones of the natural coloration. That part of why these are offered in sets and not individually, because it shows the range of palette, sizes, and surface variations. The base color is a warm tan, but colors can range from deep reds, browns, and black to light yellow-browns. Some crystals have a white coating on the faces with bare darker junctions creating an interesting visual effect like a model crystal.\u003c\/p\u003e\n\u003cp\u003eThis material is mostly near-opaque but can be translucent at time times. Curiously, of the two crystals I have accidentally broken, one was the same color throughout but the other (pictured) had a dark core with almost metallic luster.\u003c\/p\u003e","brand":"Pretty Ugly Things","offers":[{"title":"Surprise me!","offer_id":44890467991703,"sku":null,"price":8.0,"currency_code":"USD","in_stock":true},{"title":"A","offer_id":44890468024471,"sku":null,"price":8.0,"currency_code":"USD","in_stock":true},{"title":"B","offer_id":44890468057239,"sku":null,"price":8.0,"currency_code":"USD","in_stock":true},{"title":"C","offer_id":44890468090007,"sku":null,"price":8.0,"currency_code":"USD","in_stock":true},{"title":"D","offer_id":44890468122775,"sku":null,"price":8.0,"currency_code":"USD","in_stock":true},{"title":"E","offer_id":44890468155543,"sku":null,"price":8.0,"currency_code":"USD","in_stock":true},{"title":"F","offer_id":44890468188311,"sku":null,"price":8.0,"currency_code":"USD","in_stock":true},{"title":"G","offer_id":44890468221079,"sku":null,"price":8.0,"currency_code":"USD","in_stock":true},{"title":"H","offer_id":44890468253847,"sku":null,"price":8.0,"currency_code":"USD","in_stock":true},{"title":"I","offer_id":44890468286615,"sku":null,"price":8.0,"currency_code":"USD","in_stock":true},{"title":"J","offer_id":44890468319383,"sku":null,"price":8.0,"currency_code":"USD","in_stock":true},{"title":"K","offer_id":44890468352151,"sku":null,"price":8.0,"currency_code":"USD","in_stock":true},{"title":"L","offer_id":44890468384919,"sku":null,"price":8.0,"currency_code":"USD","in_stock":true},{"title":"M","offer_id":44890468417687,"sku":null,"price":8.0,"currency_code":"USD","in_stock":true},{"title":"N","offer_id":44890468450455,"sku":null,"price":8.0,"currency_code":"USD","in_stock":true},{"title":"O","offer_id":44890468483223,"sku":null,"price":8.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0639\/5192\/9495\/files\/IMG_8257.jpg?v=1724776983"},{"product_id":"dolomite-snowflake-dolomite-ps-after-aragonite-with-twinning","title":"Dolomite snowflake (dolomite ps. after aragonite), twinned","description":"\u003cp\u003e\u003cstrong\u003eLocale: \u003c\/strong\u003eRoswell, New Mexico\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox dimensions:\u003c\/strong\u003e 2.5 x 2.25 x 1.5\"\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox weight:\u003c\/strong\u003e 203g\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThese unusual pseudomorphs of dolomite after aragonite have earned the name “snowflake” because of their hexagonal shape which is often striated to give the mineral an appearance like a chunky snowflake. ‘Pseudomorph’ means the mineral initially grew as aragonite, and then through geological processes the aragonite was replaced with dolomite. The new mineral will retain the shape of the original growth. \u003c\/p\u003e\n\u003cp\u003eWith dolomite snowflakes, the aragonite crystal habit is referred to as ‘pseudo-hexagonal’ meaning the crystals that appear hexagonal are actually formed of multiple intergrown crystals (twinned growth). The \u003cmeta charset=\"utf-8\"\u003epseudo-hexagonal crystals grow similar to the arms of its namesake snowflake, forming six symmetric small pointed pie-wedges (you may be able to tell, the boundary between crystals is about halfway between points).\u003cmeta charset=\"utf-8\"\u003e\u003c\/p\u003e\n\u003cp\u003eThis pseudo-hexagonal crystal habit is common in aragonite! Purple aragonite and sputnik aragonite also have a pseudo-hexagonal habit and get their hexagonal crystal shape from cyclic twinned growth—studied closely you can see similarities with the crystal growth of dolomite snowflakes. \u003cmeta charset=\"utf-8\"\u003eThis specimen is even more complex; when viewed from the side you see it is actually two twinned dolomite snowflakes, one intersecting the other (twinning on twinning!).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUV reactivity \u003c\/strong\u003eThis material reacts well, fluorescing white with orange spots under 365nm UV light. It also has moderately strong phosphorescence of a yellowish-green color.\u003c\/p\u003e","brand":"Pretty Ugly Things","offers":[{"title":"Default Title","offer_id":45290438164631,"sku":null,"price":48.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0639\/5192\/9495\/files\/IMG_7241.jpg?v=1741643760"},{"product_id":"dolomite-snowflake-dolomite-ps-after-aragonite-4","title":"Dolomite snowflake (dolomite ps. after aragonite)","description":"\u003cp\u003e\u003cstrong\u003eLocale: \u003c\/strong\u003eRoswell, New Mexico\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox dimensions:\u003c\/strong\u003e 2.5 x 2.25 x 1.25\"\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox weight:\u003c\/strong\u003e 193g\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThese unusual pseudomorphs of dolomite after aragonite have earned the name “snowflake” because of their hexagonal shape which is often striated to give the mineral an appearance like a chunky snowflake. ‘Pseudomorph’ means the mineral initially grew as aragonite, and then through geological processes the aragonite was replaced with dolomite. The new mineral will retain the shape of the original growth. This piece also appears to have some small blade-like secondary crystals.\u003c\/p\u003e\n\u003cp\u003eWith dolomite snowflakes, the aragonite crystal habit is referred to as ‘pseudo-hexagonal’ meaning the crystals that appear hexagonal are actually formed of multiple intergrown crystals (twinned growth). The \u003cmeta charset=\"utf-8\"\u003epseudo-hexagonal crystals grow similar to the arms of its namesake snowflake, forming six symmetric small pointed pie-wedges (you may be able to tell, the boundary between crystals is about halfway between points).\u003c\/p\u003e\n\u003cp\u003eThis pseudo-hexagonal crystal habit is common in aragonite! Purple aragonite and sputnik aragonite also have a pseudo-hexagonal habit and get their hexagonal crystal shape from cyclic twinned growth—studied closely you can see similarities with the crystal growth of dolomite snowflakes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUV reactivity \u003c\/strong\u003eThis material reacts well, fluorescing white with orange spots under 365nm UV light. It also has moderately strong phosphorescence of a yellowish-green color.\u003c\/p\u003e","brand":"Pretty Ugly Things","offers":[{"title":"Default Title","offer_id":45290473226391,"sku":null,"price":44.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0639\/5192\/9495\/files\/IMG_7215.jpg?v=1741643892"},{"product_id":"pink-chalcedony-nodule","title":"Pink chalcedony nodule","description":"\u003cp\u003e\u003cstrong\u003eLocale:\u003c\/strong\u003e Yankee Dog Claim, Hidalgo, New Mexico\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox size:\u003c\/strong\u003e 1.25\"\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox weight:\u003c\/strong\u003e 21g\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003ePink chalcedony nodules, sometimes called \"chalcedony desert roses,\" have been discovered across the southwest. They were prolific from this locale back in the 1990s, but today are much harder to come by—at least with any size or quality.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe material is known for its strong UV reaction and undulating ropy, botryoidal forms. \u003c\/span\u003e\u003cspan\u003ePink chalcedony often grows shapes like a nest, cup, or knobby \"ear\" with raised rims of concentric banding. 'Agate' refers to chalcedony with banded color, whereas this chalcedony has banded \u003cem\u003estructure. \u003c\/em\u003eIt has\u003c\/span\u003e\u003cspan\u003e a dynamic, fluid appearance similar to its relative hyalite, as if someone piped icing on a cake when it was still warm so it's starting to melt down the sides.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThis small specimen has structure like a stack of flapjacks, with \u003c\/span\u003e\u003cspan\u003enice light pink coloration and good translucency in the top layers. The middle layers have more opaque whitish banding. The pink chalcedony is thick, with a small amount of light gray matrix on the base.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003e\u003cstrong\u003eUV reactivity\u003c\/strong\u003e this material has an excellent UV reaction, most pieces glowing a strong green under 365nm UV light. \u003cmeta charset=\"utf-8\"\u003eThe more translucent material on this piece has stronger UV reaction, making it look like a hamburger of green, light whitish and more green when fluorescing.\u003c\/span\u003e\u003c\/p\u003e","brand":"Pretty Ugly Things","offers":[{"title":"Default Title","offer_id":45292928237719,"sku":null,"price":22.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0639\/5192\/9495\/files\/IMG_8484_efcfaa48-e74a-44aa-875d-3aa7c520c3e1.jpg?v=1741968663"},{"product_id":"pink-chalcedony-nodule-1","title":"Pink chalcedony nodule","description":"\u003cp\u003e\u003cstrong\u003eLocale:\u003c\/strong\u003e Yankee Dog Claim, Hidalgo, New Mexico\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox size:\u003c\/strong\u003e 1.5\"\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox weight:\u003c\/strong\u003e 40g\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003ePink chalcedony nodules, sometimes called \"chalcedony desert roses,\" have been discovered across the southwest. They were prolific from this locale back in the 1990s, but today are much harder to come by—at least with any size or quality. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe material is known for its strong UV reaction and undulating ropy, botryoidal forms. \u003c\/span\u003e\u003cspan\u003ePink chalcedony often grows shapes like a nest, cup, or knobby \"ear\" with raised rims of concentric banding. 'Agate' refers to chalcedony with banded color, whereas this chalcedony has banded \u003cem\u003estructure. \u003c\/em\u003eIt has\u003c\/span\u003e\u003cspan\u003e a dynamic, fluid appearance similar to its relative hyalite, as if someone piped icing on a cake when it was still warm so it's starting to melt down the sides.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThis small specimen is a piece of light tan-gray matrix featuring two flat domes of chalcedony, like a pair of bongo drums (or half-melted soft-serve). The chalcedony \u003c\/span\u003e\u003cspan\u003ehas very light pink coloration and good translucency, with some more opaque whitish layers visible inside. The surface has a swirling ropy and melted appearance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003e\u003cstrong\u003eUV reactivity\u003c\/strong\u003e this material has an excellent UV reaction, most pieces glowing strong green under 365nm UV light. \u003cmeta charset=\"utf-8\"\u003eThis piece has a very good reaction, with fluorescence brightest in the center of the circles, and a lighter reaction in the sides and base. \u003c\/span\u003e\u003cspan\u003e\u003cmeta charset=\"utf-8\"\u003eNo phosphorescence detected.\u003c\/span\u003e\u003c\/p\u003e","brand":"Pretty Ugly Things","offers":[{"title":"Default Title","offer_id":45293007995031,"sku":null,"price":20.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0639\/5192\/9495\/files\/IMG_8592.jpg?v=1741895636"},{"product_id":"pink-chalcedony-nodule-2","title":"Pink chalcedony nodule","description":"\u003cp\u003e\u003cstrong\u003eLocale:\u003c\/strong\u003e Yankee Dog Claim, Hidalgo, New Mexico\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox size:\u003c\/strong\u003e 1.5\"\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox weight:\u003c\/strong\u003e 33g\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003ePink chalcedony nodules, sometimes called \"chalcedony desert roses,\" have been discovered across the southwest. They were prolific from this locale back in the 1990s, but today are much harder to come by—at least with any size or quality. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe material is known for its strong UV reaction and undulating ropy, botryoidal forms. \u003c\/span\u003e\u003cspan\u003ePink chalcedony often grows shapes like a nest, cup, or knobby \"ear\" with raised rims of concentric banding. 'Agate' refers to chalcedony with banded color, whereas this chalcedony has banded \u003cem\u003estructure. \u003c\/em\u003eIt has\u003c\/span\u003e\u003cspan\u003e a dynamic, fluid appearance similar to its relative hyalite, as if someone piped icing on a cake when it was still warm so it's starting to melt down the sides.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThis small specimen has nice light pink coloration and good translucency, with small berry-like \u003cmeta charset=\"utf-8\"\u003ebotryoidal forms \u003cmeta charset=\"utf-8\"\u003eon a light gray matrix. Studied closely, they are composed of ropy, snaking chalcedony with concentric rings visible.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003e\u003cstrong\u003eUV reactivity\u003c\/strong\u003e this material has an excellent UV reaction, most pieces glowing a strong green under 365nm UV light. This piece has relatively weak reaction compared to many, with a light green glow to the pink berry formation, even using a strong 365nm UV light. A small patch of lower-quality chalcedony in one corner has a vivid geen reaction. No phosphorescence detected.\u003c\/span\u003e\u003c\/p\u003e","brand":"Pretty Ugly Things","offers":[{"title":"Default Title","offer_id":45293009174679,"sku":null,"price":20.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0639\/5192\/9495\/files\/IMG_8601.jpg?v=1741911683"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0639\/5192\/9495\/collections\/Collection_headers.png?v=1731371097","url":"https:\/\/prettyuglythingsaz.com\/collections\/collectors-pieces.oembed?page=4","provider":"Pretty Ugly Things","version":"1.0","type":"link"}